Difference between revisions of "Π polarizability Software Meeting Mar 31, 2022"
From GlueXWiki
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#* DFMWPCCluster | #* DFMWPCCluster | ||
#* DFMWPCMatchedTrack | #* DFMWPCMatchedTrack | ||
| + | #* DCTOFDigitHit, DCTOFHit, DCTOFPoint | ||
#: | #: | ||
# PID: | # PID: | ||
| Line 71: | Line 72: | ||
# Event viewer | # Event viewer | ||
#: | #: | ||
| − | # FMWPC_online monitoring plugin | + | # Monitoring |
| − | #* FMWPC_Performance: [https://halldweb.jlab.org/wiki/images/1/12/FMWPC_resolution.PNG resolution/alignment] and [https://halldweb.jlab.org/wiki/images/0/0b/FMWPC_efficiency.PNG efficiency] | + | #* FMWPC_online monitoring plugin |
| + | #** Rory suggestions (see below) | ||
| + | #** FMWPC_Performance: [https://halldweb.jlab.org/wiki/images/1/12/FMWPC_resolution.PNG resolution/alignment] and [https://halldweb.jlab.org/wiki/images/0/0b/FMWPC_efficiency.PNG efficiency] | ||
#: | #: | ||
# CPP Simulations | # CPP Simulations | ||
#: | #: | ||
# AOT | # AOT | ||
| + | |||
| + | == Monitoring ideas == | ||
| + | The following suggested by Rory in an e-mail on Mar. 24, 2022 | ||
| + | |||
| + | # invariant mass of the 2 pions | ||
| + | # t-distribution | ||
| + | # The azimuthal distribution of the pi+pi- momentum vector relative to the polarization direction (usually the x or y axis) | ||
| + | # The azimuthal distribution of the pi+ in the helicity frame. Here’s where my understanding drops off. See the diagram below from Alex. I think we want to plot Psi = (phi - Phi), with phi and Phi shown in the figure below. phi seems easy, it’s the angle between pi+pi- production plane, and the plane formed by the incident nucleus and recoiling nucleus. However, what I’m not clear on from this diagram is the definition of the angle Phi. Pgamma seems to be the polarization vector in the rho0 recoil-nucleus CM frame, and presumably Pgamma has components in the x, y, and z direction in this frame. So what exactly is the angle Phi in this diagram? | ||
| + | # Also shown below is the plot from Ballam, showing the clear signature for the rho0 in the helicity frame for the Psi distribution. If we were to cut on events at the rho0 peak, then this is what we should expect to see. | ||
== Useful Links == | == Useful Links == | ||
Revision as of 11:47, 31 March 2022
Contents
Meeting Time And Location
12:30 EST (JLab time) Thursdays Weekly Meeting
Connecting
Join ZoomGov Meeting
https://jlab-org.zoomgov.com/j/1613177947?pwd=MUtiRnZjWnF4SzFjL0NwRW83NC9uZz09
Meeting ID: 161 317 7947
Passcode: 287835
David Lawrence is inviting you to a scheduled ZoomGov meeting. Topic: CPP Software Meeting Time: This is a recurring meeting Meet anytime Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1613177947?pwd=MUtiRnZjWnF4SzFjL0NwRW83NC9uZz09 Meeting ID: 161 317 7947 Passcode: 287835 One tap mobile +16692545252,,1608628791# US (San Jose) +16468287666,,1608628791# US (New York) Dial by your location +1 669 254 5252 US (San Jose) +1 646 828 7666 US (New York) +1 669 216 1590 US (San Jose) +1 551 285 1373 US 833 568 8864 US Toll-free Meeting ID: 161 317 7947 Find your local number: https://jlab-org.zoomgov.com/u/acZK7hDWFf Join by SIP 1608628791@sip.zoomgov.com Join by H.323 161.199.138.10 (US West) 161.199.136.10 (US East) Meeting ID: 160 862 8791 Passcode: 112160
Agenda
- Previous Meeting
- Phase shift meeting time.
- Pending Pull Requests and Reviews (CPP branch)
- DBeamPhoton
- Adjust code to handle overlapping microscope and hodoscope
- FMWPC Library
- DFMWPCHit - Calibrated hits
- DFMWPCCluster
- DFMWPCMatchedTrack
- DCTOFDigitHit, DCTOFHit, DCTOFPoint
- PID:
- e+e- PID
- input features
- FCAL Shower Energy/Kinfit Momentum
- FCAL E9/E25 Shower Ratio
- FCAL DOCA
- input features
- πμ classification
- e+e- PID
- Event viewer
- Monitoring
- FMWPC_online monitoring plugin
- Rory suggestions (see below)
- FMWPC_Performance: resolution/alignment and efficiency
- FMWPC_online monitoring plugin
- CPP Simulations
- AOT
Monitoring ideas
The following suggested by Rory in an e-mail on Mar. 24, 2022
- invariant mass of the 2 pions
- t-distribution
- The azimuthal distribution of the pi+pi- momentum vector relative to the polarization direction (usually the x or y axis)
- The azimuthal distribution of the pi+ in the helicity frame. Here’s where my understanding drops off. See the diagram below from Alex. I think we want to plot Psi = (phi - Phi), with phi and Phi shown in the figure below. phi seems easy, it’s the angle between pi+pi- production plane, and the plane formed by the incident nucleus and recoiling nucleus. However, what I’m not clear on from this diagram is the definition of the angle Phi. Pgamma seems to be the polarization vector in the rho0 recoil-nucleus CM frame, and presumably Pgamma has components in the x, y, and z direction in this frame. So what exactly is the angle Phi in this diagram?
- Also shown below is the plot from Ballam, showing the clear signature for the rho0 in the helicity frame for the Psi distribution. If we were to cut on events at the rho0 peak, then this is what we should expect to see.
