https://halldweb1.jlab.org/wiki/api.php?action=feedcontributions&user=Rupesh&feedformat=atomGlueXWiki - User contributions [en]2024-03-28T13:37:31ZUser contributionsMediaWiki 1.24.1https://halldweb1.jlab.org/wiki/index.php?title=Theses&diff=114757Theses2022-07-27T14:35:06Z<p>Rupesh: /* Theses (more recent first) */</p>
<hr />
<div>== [[Publications ]] ==<br />
<br />
== [[GlueX Publication Policies]] ==<br />
<br />
== [[Papers Under Review]] ==<br />
<br />
== [[Physics Publications]] ==<br />
<br />
== [[Instrumentation Publications]] ==<br />
<br />
== [[Conference Proceedings]] ==<br />
<br />
== [[Theses]] <font size=-1>''(more recent first)''</font> ==<br />
Please include the name of the student, the student's institution, the name of the advisor, the title of the thesis and the year the thesis came out. Also provide a link to the thesis on DocDb. <font color=red><b>All results found in Ph.D. theses should not be considered as approved GlueX results and considered as preliminary</b></font>.<br />
<br />
=== Theses in 2022 ===<br />
* Rupesh Dotel, <b>Ph.D. Thesis</b>, Florida International University, Supervisor: Werner Boeglin, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5694 Study of the EtaPrimePi0 system in GlueX], 2022.<br />
* Brandon Sumner, <b>Ph.D. Thesis</b>, Arizona State University, Supervisor: M. Dugger, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5597 Study of Excited Cascade Baryons and Preliminary Cross-Sections for &Xi;(1530) Using Data from the GlueX Experiment], 2022.<br />
* Amy Schertz, <b>Ph.D. Thesis</b>, College of William & Mary, Supervisor: J. Stevens, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5569 Partial Wave Analysis of the &omega;&pi;<sup>-</sup> Final State Photoproduced at GlueX], 2022.<br />
<br />
=== Theses in 2021 ===<br />
* Sebastian Cole, <b>Ph.D. Thesis</b>, Arizona State University, Supervisor: M. Dugger, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5254 Partial Wave Analysis of Meson Resonances That Decay To K<sup>∗</sup>K<sup>-</sup> Using Data from the GlueX Experiment], 2021.<br />
* Yunjie Yang, <b>Ph.D. Thesis</b>, MIT, Supervisor: M. Williams, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5100 Commissioning the DIRC Detector and Searching for Axion-like Particles at GlueX], 2021.<br />
* Ahmed Foda, <b>Ph.D. Thesis</b>, University of Regina, Supervisor: Z. Papandreou, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4904 Photoproduction of the b<sub>1</sub>(1235) Meson off the proton at E<sub>&gamma;</sub> = 6-12 GeV], 2021.<br />
<br />
=== Theses in 2020 ===<br />
* Abdennacer Hamdi, <b>Ph.D. Thesis</b>, Goethe Frankfurt University, Supervisor: Prof. Klaus Peters, [https://halldweb.jlab.org/DocDB/0048/004880/001/thesis_abdennacer_hamdi.pdf Exotic Meson Photoproduction at GlueX – Search for the hybrid candidate Y(2175)], 2020.<br />
* Nilanga Wickramaarachchi, <b>Ph.D. Thesis</b>, Old Dominion University, Supervisor: Moskov Amaryan, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4429 Measurement of the Photon Beam Asymmetry in &gamma;p &rarr;K<sup>+</sup>&Sigma;<sup>0</sup> at E<sub>&gamma;</sub>=8.5 GeV with GlueX], 2020.<br />
* Peter Pauli, <b>Ph.D. Thesis</b>, University of Glasgow, Supervisor: Dave Ireland/Ken Livingston, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4628 &Lambda;(1520) Measurements at the GlueX Experiment], 2020.<br />
* Mahmoud Kamel, <b>Ph.D. Thesis</b>, Florida International University, Supervisor: Werner Boeglin, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4831 Photo-production of Eta Mesons], 2020.<br />
* Ashley Ernst, <b>Ph.D. Thesis</b>, Florida State University, Supervisor: V. Crede, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5204 Photoproduction of Cascade Baryons Using the GlueX Detector at Jefferson Laboratory], 2020.<br />
<br />
=== Theses in 2019 ===<br />
* Bradford Cannon, <b>Ph.D. Thesis</b>, Florida State University, Supervisor: P. Eugenio, [https://halldweb.jlab.org/DocDB/0039/003980/008/brad_thesis.pdf Search for New and Unusual Strangeonia States Using &gamma;p &rarr; p&phi;&eta; with GlueX at Thomas Jefferson National Accelerator Facility], 2019.<br />
* Tegan Beattie, <b>Ph.D. Thesis</b>, University of Regina, Supervisor: Z. Papandreou, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4088 Measurement of the Beam Asymmetry for the Eta and Eta Prime Mesons with the GlueX Experiment], 2019.<br />
* Jon Zarling, <b>Ph.D. Thesis</b>, Indiana University, Supervisor: M. Shepherd, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4131 Measurement of Pseudoscalar Beam Asymmetry for &pi;<sup>-</sup>&Delta;<sup>++</sup> Photoproduction on the Proton at E<sub>&gamma;</sub>=8.5 GeV with the GlueX Experiment], 2019.<br />
* William McGinley, <b>Ph.D. thesis</b>, Carnegie Mellon University, Supervisor: Curtis A. Meyer. [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4172 Development of the Barrel Calorimeter Reconstruction and Measurement of the Beam Asymmetry ($\Sigma$) for Photoproduced $\pi^0$ and $\eta$ Mesons with the GlueX Experiment], 2019.<br />
<br />
=== Theses in 2018 ===<br />
* John Hardin, <b> Ph.D. Thesis</b>, MIT, Supervisor: M. Williams, [http://hdl.handle.net/1721.1/119104 Upgrading particle identification and searching for leptophobic bosons at GlueX], 2018<br />
<br />
=== Theses in 2017 ===<br />
* Michael Staib, <b>Ph.D. Thesis</b>, Carnegie Mellon University, Supervisor: C. Meyer, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3393 Calibrations for charged particle tracking and measurements of &omega; photoproduction with the GlueX detector], 2017.<br />
* Alex Barnes, <b>Ph.D. Thesis</b>, University of Connecticut, Supervisor R.T. Jones, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3335 Development of the Tagger Microscope & Analysis of Spin Density Matrix Elements in Photon, Proton to Phi, Proton for the GlueX Experiment], 2017.<br />
* Brendan Pratt, <b>Ph.D. Thesis</b>, University of Connecticut, Supervisor R.T. Jones, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4206 Diamond Radiator Fabrication, Characterization and Performance for the GlueX Experiment], 2017.<br />
<br />
=== Theses in 2016 ===<br />
* Eric Pooser, <b>Ph.D. Thesis</b>, Florida International University, Supervisor: W. Boeglin, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3064 The GlueX Start Counter & Beam Asymmetry In Single Pi Photoproduction], 2016.<br />
<br />
=== Theses in 2013 ===<br />
* Shaun Krueger, <b>M.Sc. Thesis</b>, University of Regina, Supervisor: Z. Papandreou/G. Lolos, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1806 SiPM Arrays as Readouts for the GlueX Barrel Calorimeter], 2013.<br />
*:<br />
<br />
=== Theses in 2012 ===<br />
* Igor Senderovich, <b>Ph.D. Thesis</b>, University of Connecticut, Supervisor R.T. Jones, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=2096 A Polarized High-Energy Photon Beam for Production of Exotic Mesons], September, 2012.<br />
*:<br />
* Mehrnoosh Tahani, <b>M.Sc. Thesis</b>, University of Regina, Supervisors: G.J. Lolos/Z. Papandreou, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=2039 Large Area MultiPixel Photon Counters on the Search for Exotic Hybrid Mesons at GlueX], 2012.<br />
*:<br />
<br />
=== Theses in 2011 ===<br />
* Stamatios Katsaganis, <b>M.Sc. Thesis</b>, University of Regina, Supervisors: Z. Papandreou/G.J. Lolos, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1806 Electromagnetic Calorimeter of the GlueX Particle Detector], 2011.<br />
*:<br />
<br />
=== Theses in 2010 ===<br />
* Micah R. Veilleux, <b>M.S. Thesis</b>, Christopher Newport University, Advisors: D. Lawrence/ E. Brash, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1716 The Effects of Non-Flat Cathode Plane Surfaces in Drift Chambers of the GlueX Experiment], 2010.<br />
*:<br />
* Blake Leverington, <b>Ph.D. Thesis</b>, University of Regina, Supervisors: Z. Papandreou/G.J. Lolos, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1604 The GlueX Lead-Scintillating Fibre Electromagnetic Calorimeter], 2010.<br />
*:<br />
* Kathryn L. Janzen, <b>M.Sc. Thesis</b>, University of Regina, Supervisors: G.J. Lolos/Z. Papandreou, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1603 Optimization of Performance Parameters for Large Area Silicon Photomultipliers for use in the GLUEX Experiment], 2010.<br />
*:<br />
<br />
=== Theses in 2006 ===<br />
* Gergana A. Koleva, <b>M.Sc. Thesis</b>, University of Regina, Supervisors: Z. Papandreou/G.J. Lolos, [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=824 Beam Tests for the GlueX Barrel Calorimeter Prototype], 2006.<br />
<br />
== [[Posters]] ==</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-May-2022&diff=113170GlueX-Collaboration-May-20222022-05-24T13:00:32Z<p>Rupesh: /* Collaboration Meeting Agenda */</p>
<hr />
<div>== GlueX Spring 2022 Collaboration Meeting ==<br />
<br />
<font size="+1">Analysis/Software Tutorial: May 23 <br><br />
Meeting: May 24-26, 2022 Hybrid </font><br />
<br />
The GlueX Collaboration Meeting will be held jointly online and in person at Jefferson Lab in CEBAF Center F113.<br />
<br />
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Join ZoomGov Meeting<br />
[https://jlab-org.zoomgov.com/j/1601990060?pwd=TUtwTGszMFg5bjhwdC9nU0IvREUzZz09 https://jlab-org.zoomgov.com/j/1601990060]<br />
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<br />
== Registration ==<br />
<br />
Everyone participating in the collaboration meeting is required to register at [https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=GlueX-May22 the Registration Page]. There is a registration fee of $50 for those attending in person at Jefferson Lab. There is no fee for remote participants.<br />
<br />
* [https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=GlueX-May22 Current List of Participants]<br />
<br />
Remember that all on-site participants must have an active visit registration approved one week in advance of the meeting. The portal for site access is [https://misportal.jlab.org/jlabAccess here]. Sign in with your JLab user ID.<br />
<br />
== Software Tutorial ==<br />
<br />
On Monday, May 23, there will be a [[GlueX_Tutorial_2022 | full day software/analysis tutorial for students]]. Registration and organization for the tutorial is independent of the collaboration meeting. Those wanting to attend should add their name to the list of participance on the [[GlueX_Tutorial_2022 | Wiki page for the tutorial]].<br />
<br />
== Collaboration Meeting Agenda ==<br />
<br />
=== Tuesday, May 24 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* '''Morning Session''' (Chair: Justin)<br />
** 9:00 - 9:15 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5601 Welcome and Opening Remarks] (Matt)<br />
** Amplitude Analysis I<br />
*** 9:15 - 9:30: Amplitude Analysis Working Group Overview: Status and Priorities (Alex)<br />
*** 9:30 - 10:00: [https://halldweb.jlab.org/DocDB/0056/005600/001/GlueX_CollabMeeting_May2022_Eta3PiTalk.pdf Dalitz &eta; &rarr; 3&pi;] (Daniel)<br />
*** 10:00 - 10:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5602 K&pi;&pi; analysis] (Andrew Hurley)<br />
** 10:30 - 11:00: Break<br />
** Amplitude Analysis II<br />
*** 11:00 - 11:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5603 &eta;’&pi;<sup>0</sup> amplitude analysis] (Rupesh)<br />
*** 11:30 - 12:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5599 &eta;'&pi;<sup>-</sup> update] (Mariana)<br />
*** 12:00 - 12:30: Discussion (as needed)<br />
<br />
* '''Afternoon Session''' (Chair: Alex)<br />
** Amplitude Analysis III<br />
*** 1:30 - 2:00 K<sub>S</sub>K<sub>S</sub> update (Dene)<br />
*** 2:00 - 2:30 &omega;&eta; update (Edmundo)<br />
*** 2:30 - 3:00 a<sub>2</sub> differential cross section (Malte)<br />
** 3:00 - 3:30: Break<br />
**JEF Project Report<br />
*** 3:30 - 4:00 Overview of FCAL-II Construction (Sasha)<br />
*** 4:00 - 4:30 Status of FCAL-II Light Monitoring System (Arshak)<br />
** PrimEx Analysis and Run Planning<br />
*** 4:30 - 5:00 Extraction of the Compton cross sections (Drew)<br />
*** 5:00 - 5:30 Status of the PrimEx-eta analysis (Igal)<br />
*** 5:30 - 6:00 Preparation for the August run (Sasha)<br />
* 6:00: '''Reception in the Atrium'''<br />
<br />
=== Wednesday, May 25 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* '''Morning Session''' (Chair: Matt)<br />
** Hall D and CEBAF Status <br />
*** 9:00 - 9:25: Hall D Status Report (Eugene)<br />
*** 9:25 - 9:50: CEBAF Status and Plans (Edy)<br />
*** 9:50 - 10:15: Engineering Activities (Tim)<br />
*** 10:15 - 10:40: CPP Run Plan and Analysis Preparations (Andrew Schick)<br />
** 10:40 - 11:00: Break<br />
** 11:00 - 11:20: Overview of DEI Efforts at JLab (Aurora Realin)<br />
** Path to High Energy CEBAF<br />
*** 11:20 - 11:35: Project Overview (Thia Keppel)<br />
*** 11:35 - 12:00: Accelerator Perspective: FFA Design (Katheryne Price)<br />
*** 12:00 - 12:25: Physics with Higher Energy Electrons (Allesandro Pilloni)<br />
*** 12:25 - 12:45: Discussion<br />
<br />
* '''Afternoon'''<br />
** 3:00: Jefferson Lab Run Around<br />
*** '''[https://misportal.jlab.org/webTools/jlab_events/2022_run-a-round REGISTER HERE]'''<br />
<br />
=== Thursday, May 26 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* '''Morning Session''' (Chair: Curtis)<br />
** 9:00-9:30: Physics Coordinator Report (Sean)<br />
** Cross Sections I<br />
*** 9:30-10:00: &Sigma;&pi;<sup>0</sup> cross section (Nilanga)<br />
*** 10:00-10:30: K<sup>-</sup>p cross section (Peter)<br />
** 10:30-11:00: Break<br />
** Cross Sections II<br />
*** 11:00-11:30: &eta; cross sections (Jon Zarling)<br />
*** 11:30-12:00: Baryon-antibaryon (Hao Li)<br />
*** 12:00-12:30: Discussion (as needed)<br />
<br />
* 12:30 - 2:00: Hall D Walkthrough (SAF113) -- contact Mark Dalton for details [https://misportal.jlab.org/training/classes/110743 Sign up link]<br />
** Required for unescorted access into Hall D and for taking shifts on Hall D experiments. Requirements to attend:<br />
*** Closed shoes (no sandals)<br />
*** Completed all other training (including Rad.Worker I, ODH)<br />
*** Individual dosimeter<br />
<br />
* '''Afternoon Session''' (Chair: Sean)<br />
** Beam Asymmetries<br />
*** 2:00-2:15: FIU summary of &eta; and &eta;’ (Joerg)<br />
*** 2:15-2:30: &Delta;<sup>+</sup>&eta; (Varun)<br />
** Rare and di-lepton analyses<br />
*** 2:30-3:00: J/&psi; cross section (Lubomir)<br />
** 3:00-3:30: Break<br />
*** 3:30-4:00: Timelike Compton (Keigo)<br />
** 4:00-4:30: Collaboration Board Report (Mark)<br />
** 4:30-4:40: Closeout</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX_Tutorial_2022&diff=113045GlueX Tutorial 20222022-05-16T15:30:39Z<p>Rupesh: /* Registration */</p>
<hr />
<div>= Purpose =<br />
<br />
* Provide an overview of the methods to search for exotic mesons<br />
* Help students and new collaborators get started with the technical steps necessary for a physics analysis<br />
* All tutorials should be explained on the basis on a fictitious analysis of the channel '''&gamma;p&rarr;&eta;&pi;<sup>0</sup>p'''<br />
<br />
&nbsp;<br />
<br />
= Location and Time =<br />
<br />
The workshop will take place at:<br />
<br />
DATES: '''May 23, 2022'''<br />
<br />
LOCATION: CEBAF Center F113<br />
<br />
&nbsp;<br />
<br />
= References =<br />
<br />
It is not necessary to have gone through the previous workshop talks, but you will probably benefit if you do.<br />
<br />
* [https://halldweb.jlab.org/wiki/index.php/GlueX_Analysis_Workshop_2013 2013 Workshop Link]<br />
* [https://halldweb.jlab.org/wiki/index.php/GlueX_Physics_Workshop_2016 2016 Workshop Link]<br />
* [[GlueX Tutorial 2018]]<br />
* [[GlueX Tutorial 2019]]<br />
<br />
&nbsp;<br />
<br />
= Workshop Software =<br />
The official software and all scripts used during the tutorial can be found on the JLab CUE:<br />
/group/halld/Software/workshops/tutorial_2022<br />
<br />
<!-- To obtain your own version of the tutorial and complete the exercises, please [https://github.com/JeffersonLab/gluex_workshops/tree/master/tutorial_2022 clone it from GitHub] in your own working area. --><br />
<br />
= Registration =<br />
<br />
Please add your name to the list of attendees below. No formal registration or registration fee is required.<br />
<br />
{| border="1" cellpadding="2" valign="top" style="text-align: center;"<br />
!width="180"| Name<br />
!width="200"| Home Institution<br />
!width="200"| Level<br />
!width="200"| Participate at JLab<br />
|-<br />
| Alex Austregesilo || JLab || Staff || Yes<br />
|-<br />
| Matt Shepherd || Indiana U. || Prof. || Yes<br />
|-<br />
| Edmundo Barriga || FSU || Grad. Student || Yes<br />
|-<br />
| Jason Barlow || FSU || Grad Student || Yes<br />
|-<br />
| Peter Pauli || U. of Glasgow || PostDoc || No<br />
|-<br />
| Karthik Suresh || U. of Regina || PhD Student || No<br />
|-<br />
| Varun Neelamana || U. of Regina || PhD Student || No<br />
|-<br />
| Susan Schadmand || GSI-FFN || Staff || Yes<br />
|-<br />
| Bhesha Devkota || MSU || Grad Student || Yes<br />
|-<br />
| Lydia Lorenti || W&M || Grad Student || Yes<br />
|-<br />
|Churamani Paudel || FIU|| Grad Student|| Yes<br />
|- <br />
| Justin Stevens || W&M || Prof. || Yes<br />
|-<br />
|Mariana Khachatryan || FIU|| Postdoc || Yes<br />
|-<br />
|Alison LaDuke || CMU || Grad Student || Yes<br />
|-<br />
|Lawrence Ng || FSU || Grad Student || Yes<br />
|-<br />
|Chandra Akondi || FSU || Postdoc || No<br />
|-<br />
| Sean Dobbs || FSU || Prof. || Yes<br />
|-<br />
| Donavan Ebersole || FSU || Grad Student || Yes<br />
|-<br />
| Gabriel A. Rodriguez Linera || FSU || Grad Student || Yes<br />
|-<br />
| Zachary Baldwin || CMU || Grad Student || Yes<br />
|-<br />
| Jiawei Guo || CMU || Grad Student || Yes<br />
|-<br />
| Beni Zihlmann || JLAB || Staff || Yes<br />
|-<br />
| Tim Kolar || TAU || Postdoc || No<br />
|-<br />
| Kevin Saldana || Indiana U. || Grad Student || No<br />
|-<br />
| Jon Zarling || Regina || Postdoc || Yes<br />
|-<br />
| Bo Yu || Duke || Grad Student || No<br />
|-<br />
| Phoebe Sharp || GWU || Grad Student || No<br />
|-<br />
| Rupesh Dotel || FIU || Grad Student || No<br />
|}<br />
&nbsp;<br />
<br />
= Remote Participation =<br />
<br />
<div class="toccolours mw-collapsible mw-collapsed"><br />
Join ZoomGov Meeting<br />
[https://jlab-org.zoomgov.com/j/1601990060?pwd=TUtwTGszMFg5bjhwdC9nU0IvREUzZz09 https://jlab-org.zoomgov.com/j/1601990060]<br />
(Click "Expand" to the right for more details -->):<br />
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Meeting ID: 160 199 0060<br />
Passcode: 8394<br />
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One tap mobile<br />
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+16468287666,,1608686187# US (New York)<br />
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Dial by your location<br />
+1 669 254 5252 US (San Jose)<br />
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833 568 8864 US Toll-free<br />
Meeting ID: 160 868 6187<br />
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Find your local number: https://jlab-org.zoomgov.com/u/akv0IBrQk<br />
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Meeting ID: 160 199 0060<br />
Passcode: 8394<br />
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<br />
&nbsp;<br />
<br />
= Draft Agenda (Under Development) =<br />
<br />
<b>Analysis Tutorial and Workshop</b><br />
* 09:00 Introduction & Overview of Methods (80) --- Chair: Sean Dobbs<br />
** 09:00 Session 1a (20+20) --- Reconstructing a Reaction in GlueX: Tracks, Showers, and Kinematic Fits --- Daniel Lersch<br />
** 09:40 Session 1b (20+20) --- A Typical Analysis Workflow (Signal MC and Background) -- Justin Stevens <br />
* 10:20 Break (20)<br />
* 10:40 Event Selection and Amplitude Analysis (80) --- Chair: Alex Austregesilo<br />
** 10:40 Session 1c (20+20) --- Combinatorics in ReactionFilter, Analysis Trees and DSelector --- Beni Zihlman<br />
** 11:20 Session 1d (20+20) --- Amplitude Analysis and Likelihood Fitting --- Matt Shepherd<br />
* 12:00 Q&A<br />
* 13:00 Lunch<br />
<br />
* 14:00 Software & Data Processing (90) --- Chair: Justin Stevens<br />
** 14:00 Session 2a (15+15) --- CUE, GlueX Environment and Batch Farm --- Alex Austregesilo<br />
** 14:30 Session 2b (15+15) --- MCWrapper and Monte Carlo Production --- Peter Pauli<br />
** 15:00 Session 2c (15+15) --- Analysis Path with DSelector --- Lawrence Ng<br />
* 15:30 Break (30)<br />
* 16:00 Simulation & Acceptance (90) --- Chair: Sean Dobbs<br />
** 16:00 Session 2d (15+15) --- Analysis Path with FSRoot --- Malte Albrecht<br />
** 16:30 Session 2e (15+15) --- Pushing AmpTools Buttons --- Matt Shepherd <br />
** 17:00 Session 2f (15+15) --- Efficiency Correction and Flux Normalization — Jon Zarling<br />
* 17:30 Q&A<br />
* 18:00 Adjourn<br />
<br />
<br />
&nbsp;<br />
<br />
= Recording =<br />
* Links to video recordings hosted on YouTube are given in the agenda above.<br />
* A video recording of this workshop can be found on the JLab CUE in: /cache/halld/workshops/physics_workshop_2022/recordings<br />
* If the files are not in that directory, they can be retrieved from tape with the following command: jcache get /mss/halld/workshops/physics_workshop_2022/recordings/*</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-Feb-2022&diff=111263GlueX-Collaboration-Feb-20222022-02-24T17:21:14Z<p>Rupesh: /* Thursday Afternoon, Feb. 24 */</p>
<hr />
<div>== GlueX Winter 2022 Collaboration Meeting ==<br />
<br />
<font size="+1">February 23-25, 2022 Hybrid Format</font><br />
<br />
The GlueX Collaboration Meeting will be held jointly online and in person at Florida State University.<br />
<br />
<div class="toccolours mw-collapsible mw-collapsed"><br />
Join ZoomGov Meeting<br />
[https://jlab-org.zoomgov.com/j/1601990060?pwd=TUtwTGszMFg5bjhwdC9nU0IvREUzZz09 https://jlab-org.zoomgov.com/j/1601990060]<br />
(Click "Expand" to the right for more details -->):<br />
<br />
<div class="mw-collapsible-content"><br />
Meeting ID: 160 199 0060<br />
Passcode: 8394<br />
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Meeting ID: 160 868 6187<br />
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Join by SIP<br />
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Join by H.323 ('''Polycom''')<br />
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Meeting ID: 160 199 0060<br />
Passcode: 8394<br />
</div><br />
</div><br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting is required to register. Please visit the [https://forms.gle/6mzextdWiNpkMneE7 Registration Page] to register. There is no fee for this meeting.<br />
<br />
* [https://forms.gle/6mzextdWiNpkMneE7 Registration Page]<br />
* [https://docs.google.com/spreadsheets/d/1tHRZnPFdrMXPp78FL3Ek29GeWmoIs50XQiq-UDhNoBI/edit?usp=sharing Current List of Participants]<br />
<br />
== Travel Logistics ==<br />
<br />
The in-person session will be hosted at Florida State University.<br />
<br />
* [http://hadron.physics.fsu.edu/~sdobbs/suggested_hotels.html Suggested Hotels & Other Logistics]<br />
<br />
== Agenda ==<br />
<br />
=== Wednesday Afternoon, Feb. 23 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* Opening Session (organizers: Matt and Justin) Chair: Matt<br />
** 2:00 - 2:15: Opening Remarks (Matt)<br />
** 2:15 - 2:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5471 Hall D Status] (Eugene)<br />
** 2:35 - 3:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5473 Hall D Installations and Engineering] (Tim)<br />
** 3:00 - 3:20: (break)<br />
** 3:20 - 3:45: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5472 Preparations for CPP] (Andrew S.)<br />
** 3:45 - 4:10: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5475 FCAL2 Construction Status] (Sasha)<br />
** 4:10 - 4:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5467 Update on Documentation Effort] (Beni)<br />
** 4:20 - 4:40: (break)<br />
** 4:40 - 5:05: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5466 Status of GlueX-II data, simulation, and analysis] (Alex)<br />
** 5:05 - 5:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5474 Report from the Collaboration Board] (Mark D.)<br />
<br />
=== Thursday Morning, Feb. 24 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* Evaluation of GlueX Detector Lifetime Issues (organizer: Matt) Chair: Eugene<br />
** 9:00 - 9:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5479 Beamline and associated instrumentation] (Richard)<br />
** 9:20 - 9:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5477 Time of Flight] (Paul) <br />
** 9:35 - 9:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5468 Start Counter] (Beni)<br />
** 9:50 - 10:15: Tracking Systems [https://halldweb.jlab.org/DocDB/0054/005469/001/CDC_Lifetime.pdf CDC (Naomi)] and [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5476 FDC] (Lubomir)<br />
** 10:15 - 10:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5478 DIRC] (Justin)<br />
** 10:30 - 10:50: (break)<br />
** 10:50 - 11:15: Calorimetry: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5480 BCAL] (Zisis) and [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5483 FCAL] (Mark D.)<br />
** 11:15 - 11:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5470 Electronics] (Fernando)<br />
** 11:35 - 11:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5482 Solenoid, cryogenics, Infrastructure] (Tim)<br />
** 11:50 - 12:00: Discussion<br />
<br />
=== Thursday Afternoon, Feb. 24 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* Amplitude Analysis (organizer: Alex) Chair: Justin<br />
** 1:35 - 1:45: Introduction of Bonn Group (Annika)<br />
** 1:45 - 2:10: AA working group overview: SDMEs and exotic searches (Alex)<br />
** 2:10 - 2:35: [https://halldweb.jlab.org/DocDB/0054/005486/001/20220224_GlueX_CM_Malte.pdf a<sub>2</sub> differential cross section in &eta;&pi;] (Malte)<br />
** 2:35 - 2:55: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5462 Double-Regge physics in &eta;&pi;<sup>0</sup>;] (Rebecca) [APS]<br />
** 2:55 - 3:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5487 Background study, amplitude analysis, moments analysis of &eta;'&pi;] (Rupesh) [APS]<br />
** 3:20 - 3:40: (break)<br />
** 3:40 - 4:05: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5484 &omega;&pi;<sup>-</sup>] (Amy)<br />
** 4:05 - 4:30: &omega;&pi;<sup>0</sup> (Karthik)<br />
** 4:30 - 4:55: &omega;&eta; (Edmundo) [APS]<br />
** 4:55 - 5:15: (break)<br />
* Beam Asymmetry (organizer: Zisis) Chair: Zisis<br />
** 5:15 - 5:35: &eta; beam asymmetry (Tolga) [APS]<br />
** 5:35 - 5:55: &eta;' beam asymmetry (Churamani) [APS]<br />
* Additional discussion as needed<br />
<br />
=== Friday Morning, Feb. 25 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* PrimEx &eta; (organizer: Sasha) Chair: Simon<br />
** 9:00 - 9:25: Compton cross section (Drew) [APS]<br />
** 9:25 - 9:50: &eta;&rarr;&gamma;&gamma; (Tyler H.) [APS]<br />
** 9:50 - 10:15: &eta;&rarr;3&pi; (Igal) [APS]<br />
* Diversity and Inclusion: <br />
** 10:15 - 10:30: D&I Introduction (Olga and Mariana)<br />
** 10:30 - 10:45: (break)<br />
* Cross Section Measurements I (organizer: Justin) Chair: Volker<br />
** 10:45 - 11:00: Working Group Overview (Justin)<br />
** 11:00 - 11:25: &Xi;(1820) (Chandra) [APS]<br />
** 11:25 - 11:50: &Lambda;(1405) &rarr; &pi;<sup>0</sup>&Sigma;<sup>0</sup> (Nilanga) [APS]<br />
** 11:50 - 12:15: &eta;&pi;&pi; (Alison) [APS]<br />
<br />
=== Friday Afternoon, Feb. 25 ===<br />
<br />
'''''All speakers should plan to use the last 5 minutes of their allocated slot for questions and discussion.'''''<br />
<br />
* Cross Section Measurements II (organizer: Justin) Chair: Justin<br />
** 1:45 - 2:20: f<sub>1</sub>&rarr;K<sub>S</sub>K&pi; (Tyler V.) [APS]<br />
** 2:20 - 2:45 (a<sub>2</sub>&rarr; K<sub>S</sub>K<sup>-</sup>) &Delta;<sup>++</sup> (Shankar) <br />
** 2:45 - 3:10: J/&psi; Cross Section (Lubomir)<br />
** 3:10 - 3:35 &eta;'&eta; Production (Jason) [APS]<br />
** 3:35 - 4:00: K+&pi;+&pi;- amplitude analysis (Andrew)<br />
...<br />
** Closing</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-Sep-2021&diff=107044GlueX-Collaboration-Sep-20212021-09-24T13:49:31Z<p>Rupesh: /* Friday, September 24 */</p>
<hr />
<div>== GlueX Collaboration Meeting ==<br />
<br />
<font size="+1">September 22-24, 2021 Virtual Meeting Online</font><br />
<br />
The September GlueX Collaboration Meeting will be held online. <br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting is required to register even though the meeting is virtual. Please visit the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=COLLAB-GLUEX-SEP21 Registration Page]. You are advised to use the meeting start and and<br />
end dates as the arrival and departure dates. There is no fee for this meeting.<br />
<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=COLLAB-GLUEX-SEP21 Current List of Participants Page]<br />
<br />
== Special Events ==<br />
<br />
* Wednesday: research [[flash talks]] by students on Wednesday morning<br />
* Friday late afternoon: we will adjourn early; relax and spend some time with colleagues<br />
<br />
== Connecting to Sessions ==<br />
<br />
# To join via a Web Browser, go to the page [https://bluejeans.com/660743227] https://bluejeans.com/660743227.<br />
# To join via Polycom room system go to the IP Address: 199.48.152.152 ([http://bjn.vc bjn.vc]) and enter the meeting ID: 660743227.<br />
# To join via phone, use one of the following numbers and the Conference ID: 660743227.<br />
#* US or Canada: +1 408 740 7256 or <br />
#* US or Canada: +1 888 240 2560<br />
# <font color=red>Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.</font><br />
<br />
== Agenda ==<br />
<br />
'''Note to Speakers: Please reserve the last 5 minutes of your allocated time slot for questions and discussion.'''<br />
<br />
===Wednesday, September 22===<br />
<br />
* Afternoon Session (chair: Matt)<br />
**2:00 - 2:05: Opening Remarks (Matt)<br />
**2:05 - 2:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5277 Hall D Status] (Eugene)<br />
**2:30 - 2:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5279 Hall D Engineering Update] (Tim) <br />
**2:50 - 3:00: (break)<br />
**3:00 - 3:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5278 CPP/NPP Update] (Beni)<br />
**3:25 - 3:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5280 FCAL Status Report] (Malte)<br />
**3:50 - 4:00: (break) <br />
**4:00 - 4:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5281 Update from Accelerator Group] (Edy)<br />
**4:25 - 4:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5282 Photon Beam Systematics Update] (Richard)<br />
**4:50 - 5:10: Membership Request from the Mount Allison University Group (David Hornidge)<br />
<br />
===Thursday, September 23===<br />
<br />
* Morning Session (chair: Justin)<br />
**9:00 - 9:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5285 Report from the Physics Coordinator] (Sean)<br />
**9:20 - 9:40: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5286 SDME Analysis Status] (Alex)<br />
**9:40 - 10:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5290 Report on GlueX-II Data Processing] (Igal)<br />
**10:00 - 10:10: (break)<br />
**10:10 - 10:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5287 &eta;&pi; Amplitude Analysis] (Lawrence)<br />
**10:35 - 11:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5289 &omega;&pi; Amplitude Analysis] (Amy)<br />
**11:00 - 11:10: (break)<br />
**11:10 - 11:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5291 J/&psi; update] (Lubomir)<br />
**11:35 - 12:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5284 CB Report and Discussion of MP Revisions] (Reinhard)<br />
<br />
* Afternoon Session (chair: Alex A.)<br />
**1:30 - 1:55: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5294 baryon-antibaryon Cross Sections] (Hao)<br />
**1:55 - 2:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5288 &eta;&rarr;3&pi; Dalitz + Cross Section] (Daniel)<br />
**2:20 - 2:30: (break)<br />
**2:30 - 2:55: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5292 Cascade Physics at FSU] (Jesse)<br />
**2:55 - 3:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5283 Excited cascade search] (Brandon)<br />
**3:20 - 3:30: (break)<br />
**3:30 - 3:45: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5293 &eta; Beam Asymmetry] (Tolga)<br />
**3:45 - 4:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5295 &eta;’ Beam Asymmetry] (Churamani)<br />
**4:00 - 4:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5296 PrimEx-&eta; Analysis Update] (Drew)<br />
**4:25: (open/discussion as needed)<br />
<br />
===Friday, September 24===<br />
<br />
* Morning Session (chair: Zisis)<br />
**9:00 - 9:25 - [[Media:ASchick_BHPOL_GlueX2021FallCollaborationMeeting.pdf |Polarimetry with e<sup>+</sup>e<sup>-</sup> pairs]] (Andrew Schick)<br />
**9:25 - 9:50 - [https://halldweb.jlab.org/DocDB/0052/005297/001/glue-jefxd-igal-jaegle-24092021.pdf JEF &eta;&rarr;&pi;<sup>0</sup>&gamma;&gamma; with GlueX-II] (Igal) <br />
**9:50 - 10:00 - (break) <br />
**10:00 - 10:20: &eta;&pi;/&eta;’&pi; update (Zach)<br />
**10:20 - 10:40: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5298 &omega;&eta; update](Edmundo)<br />
**10:40 - 11:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5299 &eta;'&pi;<sup>0</sup> update] (Rupesh)<br />
**11:00 - 11:10: (break) <br />
**11:10 - 11:30: &eta;&pi;&pi; update (Alison)<br />
**11:30 - 11:55: K<sub>S</sub> K<sub>S</sub> update (Dene)<br />
**11:55 - 12:20: K<sub>S</sub>K&pi; update (Tyler V.)<br />
**12:20: Closing<br />
<br />
* Afternoon<br />
** Members are encouraged to socialize locally in a way that is compliant with health guidance and regulations. Get together, relax a little, and have a chat about physics!<br />
** '''For those near Jefferson Lab''': We've reserved one of the Shelters at [https://hampton.gov/142/Sandy-Bottom-Nature-Park Sandy Bottom Nature Park] near the Playground (Courtyard #3, right side of the main entrance). We will meet there at 2pm and have access to a grill and provide charcoal, utensils, hot dogs and some condiments. You’re welcome to bring your own food to grill, sides, snacks or drinks for a late lunch. Family, friends and pets are welcome to join us as well. The park closes at sunset.</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=Double_Regge_Exchange_Meeting&diff=105180Double Regge Exchange Meeting2021-05-12T14:45:27Z<p>Rupesh: /* May 10 2021 */</p>
<hr />
<div>= Location =<br />
<br />
Jefferson Lab<br />
<br />
* 10:30am: F326/327<br />
<br />
Bluejeans: https://bluejeans.com/776007194<br />
<br />
= Information =<br />
<br />
* [https://halldweb.jlab.org/wiki-private/index.php/2021_Etapi_systematic_studies 2021 Etapi systematic studies]<br />
<br />
=Google Group=<br />
gluex-jpac-double-regge-discussion@googlegroups.com<br />
<br />
= May 10 2021=<br />
* Experimental Update<br />
** Zach [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5090]<br />
** Rupesh [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=5092]<br />
* Theory Update<br />
<br />
Minutes:<br />
<br />
Zach and Rupesh showed updates on eta' pi0. Zach looked at mass differences in order to understand the enhancement he sees at threshold. He sees that he can place cuts on the mass difference of the eta and pi0 to enhance his eta' signal without cutting any true eta' events. These cuts need to be optimized and will be studied more. He also sees leakage from the 2pi0 and eta pi0 channels into this threshold region. He will study what cuts he can place on these distributions in an attempt to clean up his distributions. Rupesh recently switched to using eta' pi0 trees with the eta and pi0 masses constrained. He presented his updated plots. Adam has spent some time recently connecting the Double Regge and resonance regions. He has some small details to work out in the calculation but believes the formalism is there. Vincent will work on generating theory curves for the eta pi0 and eta pi- beam asymmetries for different exchanges.<br />
<br />
=Apr 26 2021=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes:<br><br />
[https://arxiv.org/pdf/2104.10646.pdf JPAC analysis of the double Regge region in COMPASS pwa results]<br><br />
Adam suggested it would be helpful to have the t2 dependence, the t at bottom vertex, when doing the analysis of the double Regge region in COMPASS data. There was something about the s12 variable and the higher COMPASS energies that makes things difficult also. GlueX energies should help alleviate this problem. Looking at the phi_GJ is also helpful. <br />
<br />
Some discussion about baryon resonances. Malte is making a mock model of the etapi0 data and will look into including baryon resonances. Lukasz has a model of baryon resonances which can be made into a generator but I am not sure how would one integrate that into the GlueX software. Would deinitely be helpful to look at though since we know there are baryon production events that remain but just not sure how it populates various distributions. <br />
<br />
<br />
<br />
=Apr 12 2021=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes:<br />
Lots of random discussions. Lawrence showed preliminary pwa fits to show for APS. a2 produced dominantly in M=2 which is also preferred by models to the tensor mesons as seen in the CLAS data. Non-resonant production should also be in the positive reflectivity since it has the same quantum numbers as the a0 (need to verfiy this). Baryon production, of say the Delta+, might be evenly split between positive and negative reflectivity, probably should not have a bias towards one reflectivity. The reflectivity of a double regge exchange should depend on the naturality of the bottom exchange where the top exchange + pion + eta is lumped into one system. <br />
<br />
The current path for double Regge model: Develop the model at high mass where we can see the effects better. Determine some observables to look at. Calculate those observables at high mass and into the resonance region and impose some continuity which we can then restrict/constrain the waveset at lower masses. Maybe comparing the integrated intensity of the waves at low mass to high mass. Rebecca is working on pushing the fits onto a GPU for faster computation. These double regge fits take awhile.<br />
<br />
Some discussion about ambiguities and leakages which there is no prescription for to handle just yet. Here are a few things that are important: {combinatorics, resolution, acceptance}. Using the generated data removes all these effects but we can break them in turn to study leakage/ambiguities. Malte is working on generating a more realistic model of the data which we can then break. Mariana has seen a problem with the acceptance correction where S-waves can leak in where there was no generated S-wave. Getting an understanding of the magnitude of these effects are probably the next big hurdle to overcome.<br />
<br />
<br />
=March 29 2021=<br />
* Experimental Update<br />
** Zach - <br />
*** gave an update on the strong dip around the b1 mass in his M(etapi) distribution. It was mainly caused by his omega selection which was from the the other pi0 in his reaction. Will look into how to better select away these omegas<br />
* Theory Update<br />
<br />
Minutes:<br />
<br />
There was a long discussion about PWA results for the a2, tensor, production. Experimentally we are seeing M=2 projection with positive reflectivity for the neutral case whereas in the charged channel we are seeing dominance of M=1 in the negative reflectivity. It is suggested that this is due to pion exchange causing a favoring of the negative reflectivity in the charged case. Reflectivity=naturality in this case. Also for a real pion exchange, not the reggeized version, the spin is 0 so the helicity of the photon must be passed directly to the resonance. This results in M=1 projection dominating for the charged channel. Pion exchange not possible in neutral case. <br />
<br />
As for the different M projections we can look in table 1 of Vincent's paper of the 3 models. The Tensor Meson Dominance model (which was the better fit to f2 data from CLAS, I think) suggests a stronger M=2 coupling for the tensor. TMD also suggests negative M projections are zero as well as the Minimal model. We might also be able to safely fix all the phases of the projections of a given wave to be the same. These two constraints can help lower fit complexity a bit. <br />
<br />
The models also suggest some structure in the transfer momentum, t. Figure 2 of the paper shows a dip in the differential cross section of the a2. This dip is caused by omega exchange. omega exchange, I think, is not possible in the charged case (https://halldweb.jlab.org/DocDB/0047/004788/012/exotic.pdf) so we do not expect a dip in this channel but it is possible in the neutral case.<br />
<br />
(Vincent's paper) https://journals.aps.org/prd/pdf/10.1103/PhysRevD.102.014003<br />
<br />
<br />
=March 15 2021=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes:<br />
Verbal updates from Zach and Rebecca. Zach is trying to understand his acceptance by tracking where particles end up in the detector. Rebecca is working with the fits. Fits seems to take a long time to run so there is a need to cache the results, Rebecca is working on getting that to happen. There was a discussion about fitting the moments directly and using some relations defined in Vincent's paper to restrict some of the amplitudes. In particular, the negative M projections might not be important if a given relation between moments is satisfied. <br />
<br />
Sean mentioned that there is a spreadsheet that we can enter the observed yields in different channels by different analyzers. From here we can make some estimates to relate the expected yields of the channels and to understand where we might be losing some events.<br />
https://docs.google.com/spreadsheets/d/1LiiByy4JIxySZIbT32Fbn9nC_xZsvh5F7omKbP8NuRg/edit#gid=0<br />
<br />
=March 1 2021=<br />
* Experimental Update<br />
** Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4974]<br />
** Zach - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4973]<br />
* Theory Update<br />
<br />
Minutes:<br />
A review is happening late march where there will be some discussion of the EtaPi systems. Malte will organize some slides and some plots that should be presented. There is some discussion of constraining the waveset (reflectivity and m-projections) since even for the D-wave there will be 5 m-projections and 2 reflectivites, lots of degrees of freedom. In the EtaPi0 system seems like m=2 is dominant projection in the D-wave, might be expected comparing with previous results from (Belle?). m=1 wave is dominant in EtaPi- probably due to pion exchange. Had a small discussion about ambiguities we are seeing (Malte/Lawrence) given a specific waveset. Malte looked at phases and Lawrence looked at the wave intensities. Lawrence also talked about using the b1 photoproduction cross section to determine an expected yield to gain some insight into what physical processes might leak into the data.<br />
<br />
=February 15 2021=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Meeting canceled due to time conflicts<br />
<br />
=February 1 2021=<br />
* Experimental Update<br />
**Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4890]<br />
**Zach - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4891]<br />
* Theory Update<br />
<br />
Minutes:<br />
Lawrence talked about multiphoton backgrounds that can leak into etapi final state. b1(1232) is probably pretty important and also potentially pi0pi0. Next steps are to use photoproduction cross sections to actually obtain an estimate.<br />
<br />
Zach showed some comparison plots between the etapi0 where eta->3pi and eta->2g. M(pi0p) and M(etapi) looks very similar. Zach did a more in depth study of the distributions of the baryon resonances by selecting a forward going eta (with GJ cut) within the delta region.<br />
<br />
=January 18 2021=<br />
* Experimental Update<br />
**Zach - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4869]<br />
* Theory Update<br />
<br />
Minutes:<br />
Zach had an update on the asymmetries (fixed the negative asymmetries he was seeing before) for the charged decay of the eta. Things look relatively consistent between his asymmetries and Lawrence's (neutral decay of the eta). The asymmetry vs teta distributions starts of small and saturates around 0.6 whereas in Lawrence's case it is closer to 0.4. Binning in u3 (t proton) the asymmetries increase in both cases. The Mpi0eta distibution looks similar and overlaying the two channels can give a hint at the separation between the a0 and a2 where a b1 bkg can live in the neutral eta decay channel. <br />
<br />
Interesting that Zach's acceptance is higher in the forward whereas in the neutral case the opposite is true.<br />
<br />
=December 7 2020=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes: Zach still seeing a negative beam asymmetry (will talk with Lawrence+Colin). Colin showed some acceptance/mass plots with an updated gen_amp generator. The generator now considers Delta++ as the recoiling particle instead of a resonance at the bottom vertex (proton+pi0). The t-slope is now calculated with respect to the Delta++ instead of the recoiling proton of the breit-wigner shaped resonance. One year worth of meetings are done!<br />
<br />
<br />
=November 23=<br />
* Experimental Update<br />
**Zach - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4789]<br />
* Theory Update<br />
<br />
Minutes: <br />
<br />
'''Zach''' gave an update of the beam asymmetries in the eta(')pi channels for just the 2017 data. Looking to include GlueX phase 1 soon. Saw mostly negative asymmetries. <br />
<br />
'''Vincent''' gave a nice presentation on the COMPASS double Regge study they have been working on. They generated pseudodata according to the published COMPASS amplitudes+errors which extend up to M(etapi)=3 GeV (consistency checks were performed but would be interesting to hear how they generated the pseudodata). At high energies in this channel natural parity exchange is dominating. 6 double Regge diagrams can contribute (a2/P, a2/f2, f2/P, P/f2, P/P, f2/f2}. COMPASS did their analysis with L<=6 and with this number of waves the fits did not reconstruct the sharp peaks at forward/backward directions - needed more waves (~10). a2 at the top vertex would produce a peak in the forward direction whereas f2/P would produce a peak in the backward direction. The regge trajectories for a2/f2 are the same whereas the pomeron has a flatter slope + larger intercept. By looking at the relative contributions to each of these diagrams extracted from fits to the psuedodata it appears that pomeron exchange is more prevalent in eta'pi channel than it is in the etapi channel. This is sort of expected since eta'pi should have more gluonic content in the wavefunction. <br />
<br />
Seems like it would be interesting to look at the cross sections as a function of t which is split into the forward and backward directions. From the slope of the cross section we might be able to determine which diagrams might contribute more in the channels we are looking at in GlueX<br />
<br />
=November 9=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes:<br />
Rebecca working on fits. Vincent talked about their progress with the COMPASS Deck analysis and is close to finalizing their results, maybe a week or so to do the bootstrapping for the etaprime channel. In the coming weeks they will give a talk about the physics/interpretations. Vincent has also been working on the theory with a photon beam - spin structure. Takes a little more work to get beam asymmetry predictions since they need normalizations. Zach gave an update on the eta(')pi -> 4gamma pi+ pi reactions. Measured some asymmetries, saw a weird effect in the 2018 data where the yields were ~doubled. Colin was thinking about how baryon decays might change the acceptance but it might be a small order effect anyways.<br />
<br />
=October 26=<br />
No meeting, collaboration meeting and DNP preparations<br />
<br />
=October 12=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes: Lawrence, Mariana, Rebecca, and Zach gave updates on the near term goals. Lawrence's near term goals are focused on backgrounds/MC. Mariana talked about PWA and working on reviving/updating moments code. Rebecca showed a fit and a simulation using Vincent's model. Fits need more data (only 2017 right now, Lawrence is working on that). Simulation was probably not made properly since there was a Gamma function factor that was missing in the parameterization. Zach gave a first look at the etapi0 where eta->3pi channel. Some trouble with GetAsymmetry not returning an asymmetry that is centered at 0. Vincent gave an update on the model he is developing.<br />
<br />
=September 27=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
Minutes: Short meeting, no updates. Fixing bugs. Classes/Teaching.<br />
<br />
=September 14=<br />
* Experimental Update<br />
* Theory Update<br />
** Vincent - Discussion of the model being developed<br />
<br />
Minutes: Rebecca is currently working on updating and cross checking Vincent's models. Vincent talked about the Double Regge model he is developing. Zach is working on getting beam asymmetry measurements for that are similar to what Colin and Lawrence have shown before. The channel Zach is looking at is gamma p -> eta pi0 p -> pi+ pi- 4gamma p.<br />
<br />
=August 31=<br />
* Experimental Update<br />
** Rebecca - update<br />
* Theory Update<br />
<br />
Minutes: Rebecca showed some initial moment fits in the a0 and a2 regions. Vincent suggested some studies to debug the fits better. Sean pointed out that backgrounds from other processes could still exist in these regions. Rebecca is coding up the new Double Regge model from Vincent. Vincent agreed to present more model details at the next meeting.<br />
<br />
=August 17=<br />
* Experimental Update<br />
* Theory Update<br />
* Rebecca - [https://halldweb.jlab.org/DocDB/0046/004620/001/DblReggeUpdate2.pdf]<br />
* Zach - update<br />
<br />
Minutes: Rebecca showed the results of her current fits to the 2-3 GeV region with the JPAC model. It was suggested that with a 3-parameter fit, she can try fitting the data in smaller M(pi0eta) bins. Also, it would be worth generating events only in that mass range, then trying to reconstruct them to see what the distribution looks like - the attempt to include lower masses did not work, but it might be an affect of the accept/reject method with the amplitude. Possible improvements to the model will be discussed in some detail in tomorrow's JPAC meeting. Zach showed some initial results from his etapi data. Some yield asymmetries were shown, also mass distributions showing differing contributions of various baryon excitations. Among other studies, he will try to understand why the efficiency for backward eta's is so low by using MC samples.<br />
<br />
=August 03=<br />
* Experimental Update<br />
* Theory Update<br />
<br />
=July 20=<br />
* Experimental Update<br />
* Theory Update<br />
= July 6=<br />
* Theory Update<br />
* Lawrence - [https://halldweb.jlab.org/DocDB/0045/004580/001/DR-BAtighter.pdf]<br />
* Zach<br />
<br />
= June 29=<br />
* Theory Update<br />
* Rebecca - [https://halldweb.jlab.org/DocDB/0045/004567/001/DblReggeUpdate.pdf]<br />
<br />
Minutes: Most of the discussion was centered around JPAC's double Regge model fit to the COMPASS PWA. One limitation in the fit is that the model allows for infinite partial waves but the data is truncated at L=6. A first look at fitting the partial waves is okay, but due to the reason above they are not ideal. Vincent has begun looking at modeling the double Regge process with a photon beam. The hope is we can use the beam asymmetry or other observables to tune this that can not be done by the partial waves. Him and Rebecca have been working on modeling this. Rebecca has been generating data using these amplitudes provided by Vincent. They both see a buildup of events at low eta pi masses. These are not physical events as the model is only valid at large eta pi masses. Eventually, a connection will need to be made between low and high eta pi masses.<br />
<br />
We did not get around to updates from Lawrence and Zach due to time constraints. We will meet again Monday July 6th and continue biweekly from there.<br />
<br />
= June 8=<br />
*Colin <br />
* Theory Update<br />
<br />
We spent a lot of time discussing our ideas for publication. We are still trying to finalize what observables are useful for the JPAC model. JPAC is currently finishing double Regge things with Compass and will soon begin (this week or next) working on photoproduction. We will then have an idea of how sensitive the model is to different observables and kinematics. Adam suggested we look at ratios (or asymmetries) of fast pi to fast eta events as this is an easy prediction for the model to make. We also discussed making plots for eta' pi and further restricting the eta pi kinematics.<br />
<br />
= April 27=<br />
*Colin -[https://halldweb.jlab.org/DocDB/0044/004441/002/presentation.pdf &Sigma; for &gamma; p -> &eta; &pi;<sup>-</sup> &Delta;<sup>++</sup> Moment Method]<br />
* Lawrence - [https://halldweb.jlab.org/DocDB/0044/004440/001/Deck%20Analysis%20Update%205.pdf &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* Theory Update<br />
<br />
Colin showed results for the beam asymmetry when one uses the cos nphi moment method from Jon Z. The results agree with the nominal extraction method. Lawrence showed some background distributions and provided an update on monte carlo studies. Rebecca has coded up Vincent's amplitudes and has begun generating events. Adam mentioned that JPAC is finishing up the Compass double Regge analysis and hopes to show the results soon. Once they finish Compass, it will be easy to implement for photoproduction.<br />
<br />
= April 13=<br />
* Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4424 &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* Theory Update<br />
<br />
= March 30=<br />
* Colin - [https://halldweb.jlab.org/DocDB/0044/004401/001/presentation.pdf &Sigma; for &gamma; p -> &eta; &pi;<sup>-</sup> &Delta;<sup>++</sup>]<br />
* Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4402 &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* Theory Update<br />
<br />
Colin presented updated beam asymmetries that corrected a sign issue. He also showed beam asymmetries in bins of recoil particles (eta Delta++ or pi- Delta++ mass). The results show the the beam asymmetry is independent of these variables. Lawrence presented beam asymmetries for uncertainties that were calculated from bootstrapping. For both analyses, we had a long discussion on why the beam asymmetry is ~0.5 and not 1. For the experimenters, we were tasked with looking at potential backgrounds and playing around with some cuts, such as the eta pi mass. The theorists were tasked with thinking about why the asymmetry was saturating at 0.5, and if there is a good physics reason behind it.<br />
<br />
= March 16=<br />
* Colin - [https://halldweb.jlab.org/DocDB/0043/004383/001/presentation.pdf &Sigma; for &gamma; p -> &eta; &pi;<sup>-</sup> &Delta;<sup>++</sup>]<br />
* Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4382 &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* Vincent<br />
<br />
Minutes:<br />
* Colin showed asymmetries as a function of t_eta and t_pi-. There appears to be an issue with the sign based off the expectations. Eg t_eta is negative, but should be positive. Colin check his fit function and extraction of the asymmetry with Lawrence and they are using the same function and the phi0 offsets are nearly identical. Therefore, the extraction method does not appear to cause the sign issue. In discussion with Adam and Vincent, the sign may need to be flipped if one has a Delta++ as the recoiling particle. Adam and Vincent will look into this more offline.<br />
* Lawrence showed asymmetries as a function of t_eta and t_pi0. They agree with what is to be expected.<br />
* Vincent showed some slides going over the theory aspects of having 3 particle final states. This needs to be studied more for the kinematics where double Regge production is dominant (high eta pi masses). Hopefully this will give a reason for the sign difference between having a recoil proton and Delta++. It may be that the sign of the asymmetry depends on the product of naturality between the two exchange particles. If this is the case, then having a Delta++ at the bottom vertex would cause a sign flip. This has not been accounted for in Colin's asymmetries.<br />
<br />
= March 2020 Agenda =<br />
<br />
* 9:30: Colin - [https://halldweb.jlab.org/DocDB/0043/004366/001/presentation.pdf &gamma; p -> &eta; &pi;<sup>-</sup> &Delta;<sup>++</sup>]<br />
* 10:00: Lawrence - [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4365 &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* 10:30: Vincent - [https://halldweb.jlab.org/wiki/index.php/File:GlueX_D_Regge.pdf]<br />
* 11:00: Discussion<br />
** Study secondary exchange vertex. If &eta; is on the upper vetex, look at yields as a function of s_{&pi;p} and t_{p}. Do we see the features of Reggeon exchange at this vertex?<br />
** Calculate beam asymmetries as a function of low t_{&pi;} and t_{&eta;}. Can make some general cuts on the kinematics to reduce potential backgrounds. For example, with a fast &pi;, we can cut to make sure the remaining particles are slow/backwards.<br />
** Vincent and Lukasz will provide the amplitudes for us to fit to out data. Can we extract reasonable values for &alpha;?<br />
** Can a prediction be made for &eta;&pi;<sup>+</sup>n? Yes, can use this channel as a check.<br />
** Work on setting up a bi weekly (or monthly) meeting to keep things moving forward.<br />
<br />
= December 2019 Agenda =<br />
<br />
* 3:00: Colin -[https://halldweb.jlab.org/DocDB/0042/004283/001/presentation.pdf &gamma; p -> &eta; &pi;<sup>-</sup> &Delta;<sup>++</sup>]<br />
* 3:20: Lawrence - &gamma; p -> &eta; &pi;<sup>0</sup> p : [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4365 &gamma; p -> &eta; &pi;<sup>0</sup> p]<br />
* 3:40: Lukasz - [https://halldweb.jlab.org/wiki/images/3/33/JLab20191206_%281%29.pdf Theory Update]<br />
* 4:00: Discussion<br />
<br />
= Action Items =</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-Feb-2021&diff=104002GlueX-Collaboration-Feb-20212021-02-18T17:42:22Z<p>Rupesh: /* Thursday */</p>
<hr />
<div>== GlueX Collaboration Meeting ==<br />
<br />
<font size="+1">February 17-19, 2021 Virtual Meeting Online</font><br />
<br />
The February GlueX Collaboration Meeting will be held online.<br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting is required to register even though the meeting is virtual. Please visit the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=COLLAB-GLUEX-FEB21 Registration Page]. You are advised to use the meeting start and and<br />
end dates as the arrival and departure dates. There is no fee for this meeting.<br />
<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=COLLAB-GLUEX-FEB21 Current List of Participants Page]<br />
<br />
== Connecting ==<br />
<br />
# To join via a Web Browser, go to the page [https://bluejeans.com/660743227] https://bluejeans.com/660743227.<br />
# To join via Polycom room system go to the IP Address: 199.48.152.152 ([http://bjn.vc bjn.vc]) and enter the meeting ID: 660743227.<br />
# To join via phone, use one of the following numbers and the Conference ID: 660743227.<br />
#* US or Canada: +1 408 740 7256 or <br />
#* US or Canada: +1 888 240 2560<br />
# <font color=red>Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.</font><br />
# More information on connecting to [[Connect to the Data Challenge Meetings|bluejeans]] is available.<br />
<br />
== Talks on the DocDB ==<br />
<br />
<font color=green>'''The DocDB talk-upload template can be found here:'''</font><br />
https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?conferenceid=68<br />
<br />
<font color=green>'''Upload your talks at the link above and then edit the agenda below to enter the appropriate link to your talk based on its DocDB document number'''. </font><br />
<br />
Example (from the May 2008 meeting):<br />
* 15:15 Session I (90) --- Offline Working Group Meeting --- Chair Curtis Meyer<br />
** (20) [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1042 Offline Software Status] -- D. Lawrence<br />
<br />
== Agenda ==<br />
<br />
=== Wednesday ===<br />
'''Note: all speakers should reserve 5 minutes for questions during their talk.'''<br />
<br />
* Afternoon Session (Chair: Justin)<br />
** 2:00 - 2:10: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4930 Opening] (Matt)<br />
** 2:10 - 2:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4929 Hall D Status] (Eugene)<br />
** 2:30 - 2:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4928 CEBAF Update] (Edy) and [https://halldweb.jlab.org/wiki/index.php/File:21-02-17_Gradient_plan_Ginsburg.jpg Energy gradient plan] (Steven) <br />
** 2:50 - 3:00: (break)<br />
** 3:00 - 3:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4926 Hall D Engineering] (Tim)<br />
** 3:25 - 3:50: [https://halldweb.jlab.org/DocDB/0049/004927/001/DIRC_Mirror_2021_Feb_17_GlueX_collaboration_meeting.pdf DIRC Mirror Refurbishment] (Bill) <br />
** 3:50 - 4:00: (break) <br />
** 4:00 - 4:25: [https://halldweb.jlab.org/DocDB/0049/004931/002/primex_02_17_2021.pdf Readiness for PrimEx Run] (Sasha)<br />
** 4:25 - 4:50: [https://halldweb.jlab.org/DocDB/0049/004925/006/Production_Winter2021_slides.pdf Status of GlueX-II Data Production] (Igal)<br />
<br />
=== Thursday ===<br />
'''Note: all speakers should reserve 5 minutes for questions during their talk.'''<br />
<br />
* Morning Session (Chair: Matt)<br />
** 9:00 - 9:25: [[Media:CPP Preparations and Report from ERR.pdf]] (Elton/Rory)<br />
** 9:25 - 9:50: [https://halldweb.jlab.org/DocDB/0049/004934/002/fcal2_2_18_2021.pdf JEF Construction Update] (Sasha)<br />
** 9:50 - 10:00: (break)<br />
** 10:00 - 10:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4935 Task Force Summary] (Sean)<br />
** 10:25 - 10:50: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4936 &rho; SDME Systematics] (Alex)<br />
** 10:50 - 11:00: (break)<br />
** 11:00 - 11:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4938 Beam Polarization from Hadronic Decays] (Mark D.)<br />
** 11:25 - 11:55: Polarization and Flux Systematics (Richard)<br />
<br />
* Afternoon Session (Chair: Alex)<br />
** 1:30 - 1:55: &eta;(')&pi; Selection and Beam Asymmetry (Zach)<br />
** 1:55 - 2:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4940 &eta;'&pi; Selection and Background Studies] (Rupesh)<br />
** 2:20 - 2:30: (break)<br />
** 2:30 - 2:55: [https://halldweb.jlab.org/DocDB/0049/004933/001/Mariana_collab_meeting_February18_2021.pdf &eta;'&pi; Polarized Moments and Sensitivity to Exotics] (Mariana)<br />
** 2:55 - 3:20: &eta;&pi; Amplitude Analysis (Malte)<br />
** 3:20 - 3:30: (break)<br />
** 3:30 - 3:55: [https://halldweb.jlab.org/DocDB/0049/004939/001/Collab_Winter2021.pdf Analysis of &omega;&pi;<sup>0</sup>] (Karthik)<br />
** 3:55 - 4:20: Analysis of &omega;&pi;<sup>&plusmn;</sup> (Amy)<br />
** 4:20 - 4:30: (break)<br />
** 4:30 - 4:55: [https://halldweb.jlab.org/DocDB/0049/004937/001/GlueX_CollabMeeting_February2021_Eta3PiTalk.pdf &eta;&rarr;3&pi; Dalitz Analysis] (Daniel)<br />
** 4:55 - 5:20: Uniqueness Tracking (Beni)<br />
<br />
=== Friday ===<br />
'''Note: all speakers should reserve 5 minutes for questions during their talk.'''<br />
<br />
* Morning Session (Chair: Reinhard)<br />
** 9:00 - 9:25: J/&psi; Analysis (Lubomir)<br />
** 9:25 - 9:50: Baryon-antibaryon production (Hao)<br />
** 9:50 - 10:00: (break)<br />
** 10:00 - 10:25: K<sub>S</sub>K<sub>S</sub> Analysis (Dene)<br />
** 10:25 - 10:50: K<sub>S</sub>K<sub>S</sub> Analysis (Gabriel)<br />
** 10:50 - 11:00: (break)<br />
** 11:00 - 11:25: PrimEx Analysis Update (Drew)<br />
** 11:25 - 11:50: Update on &gamma; p &rarr; p &eta; &pi;<sup>+</sup> &pi;<sup>-</sup> (Alison LaDuke)<br />
<br />
* Afternoon Session (Chair: Sean)<br />
** 1:30 - 1:35: Beam asymmetry WG overview (Zisis)<br />
** 1:35 - 1:50: &eta; asymmetry (Tolga)<br />
** 1:50 - 2:05: &eta;’ asymmetry (Churamani)<br />
** 2:05 - 2:20: &eta; with &Delta;<sup>+</sup> Recoil (Varun)<br />
** 2:20 - 2:30: (break)<br />
** 2:30 - 2:35: Cross section WG overview (Justin)<br />
** 2:35 - 2:50: Radiative Hyperon decays (Kevin)<br />
** 2:50 - 3:05: Cascade studies (Brandon Sumner)<br />
** 3:05 - 3:20: (open slot)<br />
** 3:20 - 3:30: (break)<br />
** 3:30 - 3:55: &Lambda;(1405) (Nilanga)<br />
** 3:55 - 4:20: &eta; Cross Section Update (Mahmoud)<br />
** 4:20 - 4:45: Report from the Collaboration Board (Reinhard) <br />
** 4:45 - 5:00: Summary and Closeout (Matt)</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-Oct-2020&diff=102635GlueX-Collaboration-Oct-20202020-10-23T16:28:22Z<p>Rupesh: /* Friday 10/23 */</p>
<hr />
<div>== GlueX Collaboration Meeting ==<br />
<br />
<font size="+1">October 22 to 24, 2020 Virtual Meeting Online</font><br />
<br />
The October GlueX Collaboration Meeting will be held online.<br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting is required to register even though the meeting is virtual. Please visit the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=COLLAB-GLUEX-OCT20 Registration Page]. You are advised to use the meeting start and and<br />
end dates as the arrival and departure dates. There is no fee for this meeting.<br />
<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=COLLAB-GLUEX-OCT20 Current List of Participants Page]<br />
<br />
== Connecting ==<br />
<br />
# To join via a Web Browser, go to the page [https://bluejeans.com/660743227] https://bluejeans.com/660743227.<br />
# To join via Polycom room system go to the IP Address: 199.48.152.152 ([http://bjn.vc bjn.vc]) and enter the meeting ID: 660743227.<br />
# To join via phone, use one of the following numbers and the Conference ID: 660743227.<br />
#* US or Canada: +1 408 740 7256 or <br />
#* US or Canada: +1 888 240 2560<br />
# <font color=red>Upon connection all microphones are automatically muted. To unmute your mike on a Polycom or equivalent unit, enter *4. Unmuting on a computer is trivial as there is a microphone button than can be clicked.</font><br />
# More information on connecting to [[Connect to the Data Challenge Meetings|bluejeans]] is available.<br />
<br />
== Talks on the DocDB ==<br />
<br />
<font color=green>'''The DocDB talk-upload template for the <u>Oct 2020 Collaboration Meeting</u> can be found here:'''</font><br />
<br />
https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?conferenceid=65<br />
<br />
<font color=green>'''Upload your talks at the link above and then edit the agenda below to enter the appropriate link to your talk based on its DocDB document number'''. </font><br />
<br />
Example (from the May 2008 meeting):<br />
* 15:15 Session I (90) --- Offline Working Group Meeting --- Chair Curtis Meyer<br />
** (20) [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1042 Offline Software Status] -- D. Lawrence<br />
<br />
-----<br />
<br />
== Agenda ==<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
=== Tuesday 10/20 ===<br />
* Pre-meeting meetings<br />
** 11:00 - 12:30 Collaboration Board (Chair: Reinhard)<br />
<br />
=== Thursday 10/22 ===<br />
''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
* Overview and recent run (Chair: Curtis Meyer)<br />
** 9:00 - 9:10 Opening remarks (Matt Shepherd)<br />
** 9:10 - 9:35 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4712 Hall D update and summer run summary] (Eugene Chudakov)<br />
** 9:35 - 10:00 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4717 Engineering and work during the SAD including CPP and FCAL-II] (Tim Whitlatch)<br />
** 10:00 - 10:20 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4716 DIRC performance update] (Justin Stevens)<br />
<br />
* 10:20 - 10:45 Coffee break<br />
<br />
* Task force reports I (Chair: Sean Dobbs)<br />
** 10:45 - 11:15 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4708 Photon Reconstruction] (Elton Smith)<br />
** 11:15 - 11:45 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4720 Track Reconstruction] (Justin Stevens)<br />
** 11:45 - 12:15 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4721 Proton Reconstruction] (Shankar Adhikari)<br />
<br />
* 12:15 - 1:10 Lunch<br />
<br />
* Beam asymmetry WG (Chair: Justin Stevens)<br />
** 1:10 - 1:25 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4711 Overview] (Zisis Papandreou)<br />
** 1:25 - 1:50 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4714 &eta; BA off proton] (Tolga Erbora)<br />
** 1:50 - 2:15 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4722 &eta;&Delta; BA] (Varun Neelamana)<br />
** 2:15 - 2:40 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4725 &eta;' BA off proton] (Churamani Paudel)<br />
<br />
* 2:40 - 3:10 Coffee Break<br />
<br />
* Rare processes (Chair: Sean Dobbs)<br />
** 3:10 - 3:30 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4724 PrimEx Overview and Readiness for 2021] (Sasha Somov)<br />
** 3:30 - 3:55 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4726 PrimEx Compton cross section update] (Drew Smith)<br />
** 3:55 - 4:20 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4727 Baryon-Antibaryon update] (Hao Li)<br />
** 4:20 - 4:40 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4723 J/&psi; update] (Lubomir Pentchev)<br />
** 4:40 - 5:05 [https://halldweb.jlab.org/DocDB/0047/004715/001/Survey3.pdf J/&psi; interpretation] (Igor Strakovsky)<br />
** 5:05 - 5:30 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4728 ALP search] (Yunjie Yang)<br />
<br />
=== Friday 10/23 ===<br />
''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
* Task force reports II (Chair: Matt Shepherd)<br />
** 9:00 - 9:30 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4729 Proton & Vertex Selection] (Justin Stevens)<br />
** 9:30 - 10:00 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4718 PID systematics] (Simon Taylor)<br />
** 10:00 - 10:30 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4732 Photon flux] (Justin Stevens)<br />
<br />
* 10:30 - 10:55 Coffee break (25)<br />
<br />
* Cross Section WG (Chair: Curtis Meyer)<br />
** 10:55 - 11:10 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4731 Overview] (Justin Stevens)<br />
** 11:10 - 11:35 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4735 &eta; final states] (Jon Zarling)<br />
** 11:35 - 12:00 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4730 &Lambda;(1520) → &Sigma;&gamma;] (Nilanga Wickramaarachchi)<br />
** 12:00 - 12:20 [https://halldweb.jlab.org/DocDB/0047/004733/001/kluckas_collabmeeting_10232020.pdf Radiative Hyperon Decays in &gamma;p → K<sup>+</sup>&Lambda;&gamma;] (Kevin Luckas)<br />
** 12:20 - 12:45 [https://halldweb.jlab.org/DocDB/0047/004734/003/Fall2020CollaborationmeetingPresentation.pdf Cascade measurements](Chandra Akondi)<br />
<br />
* 12:45 - 1:30 Lunch<br />
<br />
* Amplitude Analysis WG I (Chair: Naomi Jarvis)<br />
** 1:30 - 1:45 Overview (Alex Austregesilo)<br />
** 1:45 - 2:10 Vector meson SDMEs (Mark Dalton)<br />
** 2:10 - 2:35 [https://halldweb.jlab.org/wiki/images/1/1d/B1_Collab_DNP2020.pdf b1(1235) → &omega;&pi;] (Karthik Suresh)<br />
** 2:35 - 3:00 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4736 &gamma;p &rarr; &eta;'&pi; p update] (Rupesh Dotel)<br />
<br />
* 3:00 - 3:30 Coffee Break<br />
<br />
* Amplitude Analysis WG II (Chair: Alex Austregesilo)<br />
** 3:30 - 3:50 &eta;&pi;&pi; (Alison LaDuke) <br />
** 3:50 - 4:15 &eta;&pi;<sup>0</sup> and &eta;&pi;<sup>-</sup> double Regge beam asymmetries (Lawrence Ng)<br />
** 4:15 - 4:40 &eta;&pi;<sup>0</sup> and &eta;'&pi;<sup>0</sup> (Zach Baldwin)<br />
** 4:40 - 5:05 &gamma;p &rarr; &eta;'&pi;<sup>0</sup>p PWA (Mariana Khachatryan)<br />
** 5:05 - 5:30 &eta;&pi; fit studies (Rebecca Barsotti)<br />
<br />
=== Saturday 10/24 ===<br />
''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
* Analysis Overview (Chair: Matt Shepherd)<br />
** 9:30 - 10:00 Software/data processing overviews (Alex Austregesilo)<br />
** 10:00 - 10:30 Summary of Task Forces and next steps (Sean Dobbs)<br />
** 10:30 - 11:00 Survey of final states (Ryan Mitchell)<br />
<br />
* 11:00 - 11:30 Coffee Break<br />
<br />
* Business Meeting (Chair: Justin Stevens)<br />
** 11:30 - 11:45 Report from the Collaboration Board (Reinhard Schumacher)<br />
** 11:45 - 12:00 Closeout (Matt Stepherd)</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX_Start_Counter_Meeting,_June_25,_2020&diff=99858GlueX Start Counter Meeting, June 25, 20202020-06-25T22:21:18Z<p>Rupesh: /* Time Resolution Studies */</p>
<hr />
<div>GlueX Start Counter Meeting<br/><br />
Thursday, June 25, 2020<br/><br />
10:00 am EDT<br/><br />
[https://jlab.bluejeans.com/ BlueJeans]: [https://bluejeans.com/556286544 556 286 544]<br />
<br />
==Agenda==<br />
<br />
# Announcements<br />
# Review [[GlueX Start Counter Meeting, May 28, 2020#Minutes|minutes from the last meeting]]<br />
# Calibration and Efficiency<br />
# Dark Rate Studies<br />
# Action Item Review<br />
<br />
== Minutes ==<br />
<br />
Present: Eugene Chudakov, Rupesh Dotel, Tolga Erbora, Mark Ito (chair), Simon Taylor, Beni Zihlmann<br />
<br />
There is [https://bluejeans.com/s/FNL0_/ a recording of this meeting] on the BlueJeans site. Use your JLab credentials to gain access.<br />
<br />
=== Review of minutes from the last meeting ===<br />
<br />
We went over the [[GlueX Start Counter Meeting, May 28, 2020#Minutes|minutes from May 28]].<br />
<br />
==== Time Resolution Studies ====<br />
<br />
Rupesh showed plots of time resolution for all thirty counters for a run late in the last run period, run 71840. Find his plots [[Media:SCmeeting June25.pdf|here]] (starting with slide 3). Recall that last time he showed evidence for worsening of the resolution as a function of time as the run progressed when using calibration constants obtained early in the run. This time constants were obtained for run 71840 and applied to the same run. For this run, results were not much different than those with the earlier-in-the-run constants. He also tried a run even later in the run, 72246, which slowed slightly better resolution. To see if there was anything special about run 71840, he looked other runs in the same run-number neighborhood. Those were all roughly the same as for 71840.<br />
<br />
Eugene asked about the source of the counter-to-counter variation in resolution, noting that the pattern repeats for all runs shown. Beni and Simon attribute that to the rate variation from counter-to-counter due to a slight tilt of the assembly and the concentration of the rate at the nose of the counters where small variations in distance from the beam make a big difference in rate.<br />
<br />
==== Gain Calibration ====<br />
<br />
After the last meeting Sean Dobbs reported via email that an initial SC gain calibration was done by Simon back in 2015, and that has been what we are using so far. Beni also pointed out that the Start Counter NIM paper had dE/dx plots both before and after "corrections." Rupesh and Beni will look at some recent monitoring plots to see if they give an indication about the current adequacy of the calibration.<br />
<br />
==== Improving Speed of Performing Calibrations ====<br />
<br />
Rupesh consulted Beni after the last meeting and found that he could reduce the number of files analyzed for a calibration pass from the full run (over 200 raw data files) to 25 and still get reliable results. That turns a month into a few days.<br />
<br />
=== SiPM Replacement? ===<br />
<br />
Beni raised the issue of how we might approach replacement of the SiPMs if we conclude, either now or in the future, that radiation damage is too severe to continue to use the current units. We need to talk to Fernando about whether it would be easier to replace the SiPM on the current boards or just make new boards with new SiPMs. We would have to research the availability of the current units. Also, we would need a plan to do the replacement mechanically including locating any necessary support jigs or structures.<br />
<br />
=== Preparations for the Upcoming Run ===<br />
<br />
Beni proposes that we leave the start counter alone until after the Fourth of July. After turn-on, he wants to take dark-current measurements (non-sparsified raw mode data) before beam arrives in the Hall. He recalled for us that that attempt before the previous run was mis-configured, DAQ-wise, and the resulting data unusable.<br />
<br />
=== Action Item Review ===<br />
<br />
# Document calibration procedure (Rupesh)<br />
# Reproduce Beni's dark current results. (Tolga)<br />
# Check status of the gain calibrations using monitoring histograms. (Rupesh, Beni)<br />
# Revisit Yi's study of SiPM annealing. (Mark, Beni)<br />
# Ask about the current recommendation from SciComp on copying files to the local disk from cache before analyzing them. (Mark)<br />
# Ask Fernando about strategy for SiPM replacement (Mark, Beni)</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-May-2020&diff=98931GlueX-Collaboration-May-20202020-05-14T12:58:52Z<p>Rupesh: </p>
<hr />
<div>== GlueX Collaboration Meeting ==<br />
<br />
<font size="+1">May 11 to 15, 2020 Virtual Meeting Online</font><br />
<br />
The May GlueX Collaboration Meeting will be held online.<br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting is required to register even though the meeting is virtual. Please visit the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=COLLAB-GLUEX-MAY20 Registration Page]. You are advised to use the meeting start and and<br />
end dates as the arrival and departure dates. There is no fee for this meeting.<br />
<br />
To see who else will be attending either in person or via electronic media, please see the<br />
<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=COLLAB-GLUEX-MAY20 Current List of Participants Page]<br />
<br />
== Connecting ==<br />
<br />
Join from computer or mobile: <br />
https://iu.zoom.us/j/93157147171<br />
<br />
Meeting ID: 931 5714 7171<br />
<br />
IU videoconferencing equipment: 26 931 5714 7171<br />
<br />
Videoconferencing equipment outside of IU:<br />
SIP: 93157147171@zoomcrc.com<br />
<br />
H.323:<br />
* 162.255.37.11 (US West)<br />
* 162.255.36.11 (US East)<br />
* 221.122.88.195 (China)<br />
* 69.174.57.160 (Canada)<br />
<br />
<br />
== Agenda ==<br />
<br />
Please find a ''draft'' agenda below. We will plan to have plenary format meetings before lunch with smaller, informal meetings in the afternoon<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
<br />
=== Monday, May 11 ===<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
==== Morning ====<br />
<br />
* Overview and recent run (Chair: Curtis)<br />
** 9:00 - 9:10: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4459 Opening remarks] (Matt)<br />
** 9:10 - 9:35: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4458 Hall D status] (Eugene)<br />
** 9:35 - 10:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4460 Summary of spring run and accelerator performance] (Alexandre)<br />
** 10:00 - 10:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4461 Status of engineering and detector upgrade construction including CPP and FCAL-II] (Tim)<br />
<br />
* Detector working group reports (Chair: Sean)<br />
** 11:00 - 11:25: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4462 Calorimetry] (Zisis)<br />
** 11:25 - 11:50 [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4464 Tracking (Millepede alignment)] (Keigo)<br />
** 11:50 - 12:15: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4463 DIRC+Track extrapolations] (Justin)<br />
** 12:15 - 12:40: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4457 Timing and Global PID] (Simon)<br />
<br />
==== Afternoon ====<br />
<br />
* 1:30: Collaboration Board Meeting (chair: Reinhard) [Zoom (link sent by email)]<br />
* 3:00: Tracking, DIRC and PID systematics discussion (discussion leader: Justin) [BlueJeans: 846453895]<br />
** PID systematic studies for SDMEs, cross sections, etc.<br />
*** Followup on workfest action item: analysis launch with looser timing and PID cuts [https://halldweb.jlab.org/data_monitoring/pid_syst/jana_pid.config Proposed JANA configuration]. Please check for completeness.<br />
*** Can we select a single dataset for these studies?<br />
** Standardizing the approach for PID cuts<br />
*** Timing &Delta;t cuts are most commonly used; how well do data/MC resolutions match?<br />
*** Several tools being developed: PIDFOM, Machine learning classifiers, etc. How do we converge?<br />
**** [https://halldweb.jlab.org/wiki/images/1/14/Pid_syst_5.11.20.pdf PID information in Analysis TTree format]<br />
** Discussion of continued DIRC improvements ([https://halldweb.jlab.org/wiki/index.php/April_20-21,_2020_DIRC#Action_items workfest action items])<br />
*** Run-dependent monitoring and time resolutions ([https://halldweb.jlab.org/DocDB/0044/004465/001/2020_May_collaboration_meeting.pdf Bill])<br />
*** Alignment studies: [https://web-docs.gsi.de/~rdzhigad/www/research/track-correction track rotations compared to survey]<br />
*** Direct vs Reflected photon resolutions<br />
* 4:00: FCAL-II construction status and discussion (Sasha) [BlueJeans: 907185247]<br />
** [https://halldweb.jlab.org/DocDB/0044/004466/001/fcal2_5_11_2020.pdf Status of the construction]<br />
** Discussion<br />
<br />
=== Tuesday, May 12 ===<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
==== Morning ====<br />
<br />
* Beamline and Analysis Systematics (Chair: Justin)<br />
** 9:00 - 9:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4467 Accelerator Update] (Mike McCaughan)<br />
** 9:30 - 10:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4469 Beamline overview and accidental subtraction systematics] (Richard)<br />
** 10:00 - 10:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4470 Summary of MC modeling of overall detector efficiency and run-period dependence] (Sean)<br />
<br />
* Cross sections and beam asymmetries (Chair: Matt)<br />
** 11:00-11:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4473 Summary of remaining beam asymmetry measurements] (Zisis)<br />
** 11:30-12:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4471 Cross section measurements at all energies for &eta;, &eta;', and &pi;<sup>0</sup>] (Justin)<br />
** 12:00-12:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4472 Vector meson cross sections and SDMEs] (Alex)<br />
<br />
==== Afternoon ====<br />
<br />
* 1:45: Additional analysis reports related to cross sections and SDMEs (Sean) [BlueJeans: 115815824]<br />
** 1:45 - 2:15: [https://halldweb.jlab.org/wiki-private/index.php/Spring_2017_rho_SDME_Analysis Discussion of SDME systematic uncertainties] (Alex)<br />
** 2:15 - 2:45: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4474 Discussion of eta pipi systematics] (George)<br />
** 2:45 - 3:45 - Discussion of G4 "CUTS" card usage in previous simulations and impact on timing cuts, photon energy, etc. (All)<br />
*** Guidance from Richard: Simulation studies should compare G4 with two different hadronization models in G3, set by the following cards (corresponding models): HADR = 1 (GEISHA), HADR =4 (FLUKA)<br />
**** [https://mailman.jlab.org/pipermail/halld-offline/2020-May/004047.html Richard will send guidance to the offline software list on how to resimulate events, and follow up on how to provide correct FLUKA input files]<br />
*** [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4479 Delta++ eta pi-] (Colin)<br />
*** [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4477 Sigma0 K+] (Nilanga)<br />
*** Others?<br />
<br />
=== Wednesday, May 13 ===<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
==== Morning ====<br />
<br />
* Preparations for the PAC and future runs (Chair: Curtis)<br />
** [[media:PAC_Planning_Discussion_Preamble.pdf | Brief Introduction]] (Matt)<br />
*** [[media:GlueX_Endorsement.pdf | Notes from bi-weekly meeting on endorsement]]<br />
** 9:00 - 9:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4478 Neutral pion polarizability] (Elton)<br />
** 9:20 - 9:40: [[Media:20200513_CPPupdate.pdf | Charged pion polarizability]] (Rory)<br />
** 9:40- 10:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4481 GDH sum rule] (Alexandre)<br />
** 10:00 - 10:30: Discussion<br />
<br />
* Preparations for the PAC and future runs (Chair: Justin)<br />
** 11:00 - 11:20: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4480 Update to JEF physics objectives] (Liping)<br />
** 11:20 - 11:40: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4482 Plan for GlueX+JEF jeopardy submission] (Matt)<br />
** 11:40 - 12:30: Discussion<br />
<br />
==== Afternoon ====<br />
<br />
* 1:30: PrimeEx-&eta; technical session (Liping) [BlueJeans: 907185247]<br />
** 1:30 - 2:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4483 Preparations for 2021 run] (Sasha)<br />
** 2:00 - 2:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4484 Detector alignment and calibration] (Drew)<br />
** 2:30 - 3:00: [https://halldweb.jlab.org/DocDB/0044/004485/001/glue-primexd-igal-jaegle-13052020.pdf PRIMEXD FCAL energy calibration] (Igal)<br />
<br />
=== Thursday, May 14 ===<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
==== Morning ====<br />
<br />
* Hybrid searches at GlueX (Chair: Matt)<br />
** 9:00 - 9:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4488 Lattice QCD and searches for hybrids] (Jo Dudek)<br />
** 9:30 - 10:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4490 Regge theory: basics and an application in exotic mesons searches] (Adam Szczepaniak)<br />
** 10:00 - 10:30: Summary of GlueX hybrid search activities with emphasis on &eta;&pi; (Colin)<br />
<br />
* Activities related to hybrid searches (Chair: Alex)<br />
** 11:00 - 11:30: Amplitude analysis of &pi;<sup>0</sup>&pi;<sup>0</sup> (Annika)<br />
** 11:30 - 12:00: Overview of &eta;&pi; and &eta;'&pi; reconstruction and yields (Lawrence)<br />
** 12:00 - 12:30: b<sub>1</sub> cross section and &omega;&pi; amplitude analysis (Foda)<br />
<br />
==== Afternoon ====<br />
* 1:30: Additional analysis reports related to hybrid searches (Chair: Justin)<br />
** 1:30 - 2:00: Production of b<sub>1</sub>&Delta;<sup>++</sup> (Amy Schertz)<br />
** 2:00 - 2:30: &eta;&pi; and &eta;'&pi; (Zach Baldwin)<br />
** 2:30 - 3:00: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4486 Amplitude analysis of &eta;'&pi;<sup>0</sup> and "PWA Challenge"] (Mariana)<br />
** 3:00 - 3:30: [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4489 Etaprime pi0 Analysis Update] (Rupesh)<br />
* 4:00: Discussion concerning action items for amplitude analysis tool development (organizer: Alex)<br />
** 4:00 - 4:30: Polarized amplitudes in pyPWA (Carlos Salgado)<br />
<br />
=== Friday, May 15 ===<br />
<br />
'''Note: All speakers should plan to use the last 5 minutes of their allocated time for questions and discussion.'''<br />
<br />
==== Morning ====<br />
<br />
* 9:00 - 9:30: Update on J/&psi; production vs. E<sub>&gamma;</sub> using both J/&psi; decay modes (Lubomir)<br />
* Hyperons (Chair: Reinhard)<br />
** 9:30 - 10:00: Cascade production (Ashley)<br />
** 10:00 - 10:30: Production of baryon-antibaryon pairs (Hao)<br />
** 10:30 - 10:50: Radiative hyperon decays in &gamma; p -> K<sup>+</sup> &Lambda; &gamma; (Kevin)<br />
* Summary and Closeout<br />
** 11:00 - 11:20: Report from the Collaboration Board (Reinhard)<br />
** 11:20 - 11:50: Physics coordinator report and summary (Sean)<br />
** 11:50 - 12:20: Discussion of what we have learned, action items, and near term milestones<br />
** 12:20 - 12:30: Closeout<br />
<br />
==== Encore! ====<br />
<br />
* 2:00: J/&psi; discussion<br />
** [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4445 Notes on Interpretation] -- Igor</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX_Start_Counter_Meeting,_March_5,_2020&diff=97052GlueX Start Counter Meeting, March 5, 20202020-03-05T00:53:58Z<p>Rupesh: </p>
<hr />
<div>GlueX Start Counter Meeting<br/><br />
Thursday, March 5, 2020<br/><br />
10:00 am EST<br/><br />
CEBAF Center, Room L207<br/><br />
[https://jlab.bluejeans.com/ BlueJeans]: [https://bluejeans.com/556286544 556 286 544]<br />
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==Agenda==<br />
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# Announcements<br />
# Review [[GlueX Start Counter Meeting, February 6, 2020#Minutes|minutes from the last meeting]]<br />
# Calibration and Efficiency (Rupesh)<br />
https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4371<br />
# Dark Rate Studies (Beni, Rupesh)<br />
# Other Run Planning<br />
# Action Item Review</div>Rupeshhttps://halldweb1.jlab.org/wiki/index.php?title=GlueX-Collaboration-Feb-2020&diff=96559GlueX-Collaboration-Feb-20202020-02-14T04:22:08Z<p>Rupesh: </p>
<hr />
<div>== GlueX Collaboration Meeting ==<br />
<br />
<font size="+1">February 13 to 15, 2020 at Jefferson Lab</font><br />
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The following template has been set up to allow people to identify what needs to be presented at the meeting. It has been roughly broken out by working group with suggestions for topics within each group. The working group chairs should work on adding the relevant talks with an estimated time (including questions) and the speaker's name. If there is a talk that does not fit into this template, please add it at the bottom.<br />
<br />
== Registration ==<br />
Everyone participating in the collaboration meeting whether in person at JLab or remotely via electronic media are encouraged to register. Please visit the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/registration.cfm?conference_id=COLLAB-GLUEX-FEB20 Registration Page].<br />
<br />
<br />
* All attendees are also required to register at the following link https://misportal.jlab.org/jlabAccess/ to enter their visit request. This appears to be different from the meeting registration page.<br />
<br />
* You can also check your current[https://misportal.jlab.org/training/ training status] to see if you are missing anything that will prevent you getting into the lab.<br />
<br />
<br />
To see who else will be attending either in person or via electronic media, please see the<br />
[https://misportal.jlab.org/Ul/conferences/generic_conference/participants.cfm?conference_id=COLLAB-GLUEX-FEB20 Current List of Participants Page]<br />
<br />
== Visits to JLab by Foreign Citizens ==<br />
* Non-U.S. citizens will be not be granted site access without attaching a CV to their visit request. Our visitor access documentation will detail CV requirements.<br />
* All visit requests must be submitted not less than seven calendar days prior to the visit start date. Admission with less than a seven day notice is only possible with documentation from their institution that a bona fide emergency prevented their advance registration.<br />
* Non-U.S. citizens must present proof of their current institutional affiliation, such as a badge, ID card or an original letter from their supervisor on institutional letterhead at the time of arrival.<br />
* Non-U.S. citizens will be granted lab access for up to one year, or to the end of their U.S. entry authorization, whichever is shorter. Visitors can request annual extensions if their Jefferson Lab host verifies a continuing need for lab access.<br />
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== Location ==<br />
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All sessions will be in CEBAF Center F113.<br />
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== Remote Access ==<br />
# To join via a Web Browser, go to the page [https://bluejeans.com/660743227] https://bluejeans.com/660743227.<br />
# To join via Polycom room system go to the IP Address: 199.48.152.152 ([http://bjn.vc bjn.vc]) and enter the meeting ID: 660743227.<br />
# To join via phone, use one of the following numbers and the Conference ID: 660743227.<br />
#* US or Canada: +1 408 740 7256 or <br />
#* US or Canada: +1 888 240 2560<br />
# More information on connecting to [[Connect to the Data Challenge Meetings|bluejeans]] is available.<br />
== Jefferson Lab Certificate ==<br />
JLab maintains its own [https://www.jlab.org/PKI/ Certificate Authority] to create and sign TLS/SSL certificates used to secure connections to numerous web and other network services. You must install JLab's signing certificate into your web browsers, email, and other clients that use TLS/SSL for secure connections. Without installing this certificate, some clients may generate warnings, while others may simply not connect. <br />
*[https://www.jlab.org/PKI/ Get the certificate here.]<br />
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== Talks on the DocDB ==<br />
<br />
<font color=green>'''The DocDB talk-upload template for the <u>February 2019 Collaboration Meeting</u> can be found here:'''</font><br />
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https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?conferenceid=63<br />
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<font color=green>'''Upload your talks at the link above and then edit the agenda below to enter the appropriate link to your talk based on its DocDB document number'''. </font><br />
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Example (from the May 2008 meeting):<br />
* 15:15 Session I (90) --- Offline Working Group Meeting --- Chair Curtis Meyer<br />
** (20) [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=1042 Offline Software Status] -- D. Lawrence<br />
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-----<br />
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== AGENDA == <br />
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== Thursday February 13, 2020 (CC-F113) ==<br />
* 9:30 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=862 Session Ia] --- Project and Accelerator Updates - Chair: Justin Stevens<br />
** 9:30 (10) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4326 Welcome] --- Curtis Meyer<br />
** 9:40 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4330 Hall D Status] --- Eugene Chudakov<br />
** 10:05 (20+5) --- [https://halldweb.jlab.org/DocDB/0043/004332/001/Fall19_Spring20_summary.pdf Fall 2019/Spring 2020 Running] --- Alexandre Deur<br />
** 10:30 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4331 Accelerator Update] --- Todd Satogata<br />
* 10:55 (35) Coffee<br />
* 11:30 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=863 Session Ia] --- Project and Accelerator Updates<br />
** 11:30 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4333 Engineering Update] --- Tim Whitlach <br />
** 11:55 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4329 Electronics Update] --- Fernando Barbosa<br />
* 12:20 (90) Lunch<br />
* 12:30 (60) Collaboration Board Meeting (F326)<br />
* 13:50 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=865 Session IIa] (100) --- Detector Updates (Organizer: )- Chair: Mark Ito<br />
** 13:50 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4335 Calorimeter Update] --- Jon Zarling<br />
** 14:15 (20+5) --- [https://halldweb.jlab.org/DocDB/0043/004334/001/DIRC_update_2020_Feb_13_GlueX_collaboration_meeting.pdf DIRC Update] --- Bill Li <br />
** 14:40 (15+5) --- [https://halldweb.jlab.org/wiki/images/2/27/Keigo20200213.pdf Drift Chamber Alignment Update] --- Keigo Mizutani<br />
** 15:00 (20+5) --- [https://halldweb.jlab.org/wiki-private/index.php/File:Collaborationmeetingtalk.pdf FCAL gain stability control] --- Chandra Akondi<br />
** 15:25 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4337 Status of the FCAL insert (FCAL2)] --- Alex Somov<br />
* 15:25(20) Coffee<br />
* 15:45 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=873 Session IIb] (100) --- Trigger/DAQ/Online (Organizer: David Lawrence) - Chair: Naomi Jarvis<br />
** 15:45 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4336 DAQ ] --- Sergey Furletov<br />
** 16:10 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4339 Trigger] --- Alex Somov<br />
** 16:35 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4328 HOSS!] --- David Lawrence<br />
** 17:00 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4338 Spokesperson Nominee Discussion] (Organizer: Reinhard Schumacher)<br />
* 18:30 --- Reception in the Atrium<br />
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== Friday February 14, 2020 (CC-F113) ==<br />
* 9:30 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=867 Session IIIa] (75) --- Physics I (Organizer: Justin Stevens) - Chair: Sean Dobbs<br />
** 9:30 (20+5) --- &gamma;p -> &eta;p beam asymmetry update --- Tolga Erbora<br />
** 9:55 (20+5) --- Beam asymmetry -t dependence in photoproduced reaction &gamma;p -> &eta;'p --- Churamani Paudel<br />
** 10:20 (20+5) --- KK&pi;&pi; update --- Nacer Hamdi<br />
* 10:45 Coffee (30)<br />
* 11:15 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=868 Session IIIb] (75) --- Physics II (Organizer: Justin Stevens) - Chair: Elton Smith<br />
** 11:15 (20+5) --- &eta;&pi;<sup>-</sup> analysis update --- Colin Gleason<br />
** 11:40 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4343 &eta;&pi;<sup>0</sup> analysis update ]--- Lawrence Ng<br />
** 12:05 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4344 &eta;'&pi;<sup>0</sup> analysis update]--- Rupesh Dotel<br />
* 12:30 Lunch (75)<br />
* 13:45 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=869 Session IVa] (125) --- Physics III (Organizer: Justin Stevens/Sean Dobbs) - Chair: Eugene Chudakov <br />
** 13:45 (20+5) --- &eta;' cross section --- Georgios Vasileiadis<br />
** 14:10 (20+5) --- Cascade cross section --- Ashley Ernst<br />
** 14:35 (20+5) --- Baryon-Antibaryon update --- Hao Li<br />
** 15:00 (20+5) --- J/&psi;&rarr;ee cross section --- Lubomir Pentchev<br />
** 15:25 (20+5) --- J/&psi;&rarr;&mu;&mu; cross section --- Alex Austregesilo<br />
* 15:50 Coffee (30)<br />
* 16:20 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=870 Session IVb] (125) --- Physics IV (Organizer: Sean Dobbs/Justin Stevens) - Chair: Curtis Meyer<br />
** 16:20 (20+5) --- Status of the PrimEx analysis --- Andrew Smith<br />
** 16:45 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4323 &pi;<sup>0</sup> polarizability proposal] --- Elton Smith<br />
** 17:10 (20+5) --- [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4341 &omega;&pi;&pi; update] --- Amy Schertz<br />
** 17:35 (20+5) --- Multiparticle Final State Survey --- Simon Taylor<br />
* 18:00 Adjourn<br />
<br />
== Saturday February 15, 2020 (CC-F113) ==<br />
* 9:00 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=871 Session Va] (100) --- Offline/Calibration (Organizer: Mark Ito) - Chair: David Lawrence<br />
** 9:00 (30+5) --- Software Update --- Mark Ito<br />
** 9:35 (30+5) --- Calibration & Reconstruction Update --- Sean Dobbs<br />
* 10:10 (20) Coffee<br />
* 10:40 [https://halldweb.jlab.org/doc-private/DocDB/DisplayMeeting?sessionid=872 Session Vb] (40) --- Business Meeting -Chair: Justin Stevens<br />
** 10:40 (20) --- Report from the Collaboration Board<br />
** 11:00 (20) --- Moving Forward - Curtis <br />
* 12:30 Adjourn</div>Rupesh