Difference between revisions of "JEF meeting, May 20, 2022"

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* Workshops/external meetings
 
* Workshops/external meetings
 
** DNP 2022 fall meeting: [https://tigers.phys.lsu.edu/dnp2022/ DNP 2022 web site]
 
** DNP 2022 fall meeting: [https://tigers.phys.lsu.edu/dnp2022/ DNP 2022 web site]
** Proposed ECT* (https://www.ectstar.eu/) workshop
+
** Proposal for workshop submitted to ECT* (https://www.ectstar.eu/)  
 +
*** Workshop title: Probing Low-Energy QCD, Fundamental Symmetry and BSM Physics with Light Meson Decays
 +
*** Desired date: June 2023
 +
 
 +
=Minutes=
 +
Attendees: Bill, Zisis, Sasha, Arshak, Igal, Tegan, Susan, Jon, Tim B., Phil, Jane, Olga, Axel, S.T.
 +
*3 students from GWU/NOVA on site
 +
** Checking quality of replacement SICCAS crystals from NPS
 +
*** Lookin for color, bubbles, cracks, chips
 +
*** Checking dimensions:  found 1 outlier (300 microns smaller than nominal)
 +
** Wrapping crystals (32 as of meeting time)
 +
** Cutting ESR
 +
* Expect 3 students from UNCW June 1 and 3 students from Lamar mid-June
 +
** All students need to take special undergraduate training
 +
* Detector support group still working on wrapping and ESR preshaping
 +
* Grand total of fabricated modules = 433
 +
* Arshak gave a preview of his talk for collaboration meeting next week on LMS
 +
** Highlighted plot of light intensity as a function of position along plexiglas:  high intensity near edges
 +
* PMT divider effort: waiting for procurement of components; still plan for fabrication in summer
 +
* Igal gave an update on η→π0γγ analysis for simulated FCAL-2 events
 +
** Backgrounds from 3π0 and γγ channels
 +
** Default cluster algorithm + cuts:  no obvious signal seen
 +
*** Also no difference between 2 algorithms and center-of-gravity vs log-weighted positions
 +
*** Looked at thrown distances between clusters
 +
** Starts to see more obvious signal peak when he applies a cut on the separation between the π0 and the bacheler γs from the signal channel
 +
*** no TOF veto applied
 +
** Separation between close clusters < 15 cm with island algorithm does not agree with thrown separation
 +
* ECT* proposal has been submitted

Latest revision as of 13:58, 20 May 2022

meeting time and location

  • 9:30 am EST (JLab time) remote only
  • Zoom meeting ID: 161 050 9142 Passcode: 004965

Agenda

Minutes

Attendees: Bill, Zisis, Sasha, Arshak, Igal, Tegan, Susan, Jon, Tim B., Phil, Jane, Olga, Axel, S.T.

  • 3 students from GWU/NOVA on site
    • Checking quality of replacement SICCAS crystals from NPS
      • Lookin for color, bubbles, cracks, chips
      • Checking dimensions: found 1 outlier (300 microns smaller than nominal)
    • Wrapping crystals (32 as of meeting time)
    • Cutting ESR
  • Expect 3 students from UNCW June 1 and 3 students from Lamar mid-June
    • All students need to take special undergraduate training
  • Detector support group still working on wrapping and ESR preshaping
  • Grand total of fabricated modules = 433
  • Arshak gave a preview of his talk for collaboration meeting next week on LMS
    • Highlighted plot of light intensity as a function of position along plexiglas: high intensity near edges
  • PMT divider effort: waiting for procurement of components; still plan for fabrication in summer
  • Igal gave an update on η→π0γγ analysis for simulated FCAL-2 events
    • Backgrounds from 3π0 and γγ channels
    • Default cluster algorithm + cuts: no obvious signal seen
      • Also no difference between 2 algorithms and center-of-gravity vs log-weighted positions
      • Looked at thrown distances between clusters
    • Starts to see more obvious signal peak when he applies a cut on the separation between the π0 and the bacheler γs from the signal channel
      • no TOF veto applied
    • Separation between close clusters < 15 cm with island algorithm does not agree with thrown separation
  • ECT* proposal has been submitted