Difference between revisions of "GlueX Tutorial 2025"
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Revision as of 16:54, 28 April 2025
Contents
Purpose
- Provide an overview of the methods to search for exotic mesons
- Help students and new collaborators get started with the technical steps necessary for a physics analysis
- All tutorials should be explained on the basis on a fictitious analysis of the channel γp→b1(1235)p→ω(782)π0p
Location and Time
The workshop will take place at:
DATES: May 12, 2025
LOCATION: CEBAF Center F326/327
Remote Participation
Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1601990060 (Click "Expand" to the right for more details -->):
Meeting ID: 160 199 0060 Passcode: 8394
One tap mobile
+16692545252,,1608686187# US (San Jose) +16468287666,,1608686187# 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: 160 868 6187
Find your local number: https://jlab-org.zoomgov.com/u/akv0IBrQk
Join by SIP
11601990060@sip.zoomgov.com
Join by H.323 (Polycom)
161.199.138.10 (US West) 161.199.136.10 (US East) Meeting ID: 160 199 0060 Passcode: 8394
References
It is not necessary to have gone through the previous workshop talks, but you will probably benefit if you do.
Workshop Software
The official software and all scripts used during the tutorial can be found on the JLab CUE:
/group/halld/Software/gluex_workshops/tutorial_2025
Most software and scripts are available by cloning this GitHub repository and going down to the tutorial_2022 directory:
https://github.com/JeffersonLab/gluex_workshops
Large data files related to the workshop can be found in:
/work/halld/gluex_workshop_data/tutorial_2025
Agenda
DRAFT
Analysis Tutorial and Workshop
- 08:45 GlueX Run Coordination Meeting
- 09:00 Introduction & Overview of Methods (120) --- Chair:
- 09:00 Session 1a (40+20) --- Event Reconstruction in GlueX -- Simon Taylor
- 10:00 Session 1b (40+20) --- Introduction to Amplitude Analysis --- Boris Grube
- 11:00 Break (20)
- 11:20 Computing & Tools (80) --- Chair:
- 11:20 Session 1c (30+10) --- Scientific Computing at JLab --- Alex Austregesilo
- 12:00 Session 1d (30+10) --- GlueX MC Generation --- Peter Hurck
- 12:40 Q&A
- 13:00 Lunch
- 14:00 MC Generation and Event Selection (120) --- Chair:
- 14:00 Session 2a (20+10) --- MC Signal Generator gen_amp_V2 --- Kevin Saldana
- 14:30 Session 2b (20+10) --- MC Background Generator bggen_upd --- Eugene Chudakov
- 15:00 Session 2c (20+10) --- Event Selection with DSelector --- Edmundo Barriga
- 15:30 Session 2c (20+10) --- Event Selection with FSRoot --- Amy Scherz
- 15:30 Break (30)
- 16:00 Advanced Methods (90) --- Chair:
- 16:00 Session 2d (20+10) --- Event Selection with AI/ML --- Igal Jaegle
- 16:30 Session 2e (20+10) --- AmpTools: Fitting and Plotting with python --- Kevin Scheuer
- 17:00 Session 2f (20+10) --- Beyond AmpTools — Lawrence Ng
- 17:30 Q&A
- 18:00 Adjourn
TIMETABLE FROM 2022 FOR REFERENCE
Analysis Tutorial and Workshop
- 09:00 Introduction & Overview of Methods (80) --- Chair: Sean Dobbs
- 09:00 Session 1a (20+20) --- Reconstructing a Reaction in GlueX: Tracks, Showers, and Kinematic Fits --- Daniel Lersch (Video)
- 09:40 Session 1b (20+20) --- A Typical Analysis Workflow (Signal MC and Background) -- Justin Stevens (Video)
- 10:20 Break (20)
- 10:40 Event Selection and Amplitude Analysis (80) --- Chair: Alex Austregesilo
- 10:40 Session 1c (20+20) --- Combinatorics in ReactionFilter, Analysis Trees and DSelector --- Beni Zihlmann (Video)
- 11:20 Session 1d (20+20) --- Amplitude Analysis and Likelihood Fitting --- Matt Shepherd (Video)
- 12:00 Q&A
- Homework --- Naomi Jarvis
- 13:00 Lunch
- 14:00 Software & Data Processing (90) --- Chair: Justin Stevens
- 14:00 Session 2a (15+15) --- CUE, GlueX Environment and Batch Farm --- Alex Austregesilo (Video)
- 14:30 Session 2b (15+15) --- MCWrapper and Monte Carlo Production --- Peter Pauli (Video)
- 15:00 Session 2c (15+15) --- Analysis Path with DSelector --- Lawrence Ng (Video)
- 15:30 Break (30)
- 16:00 Simulation & Acceptance (90) --- Chair: Sean Dobbs
- 16:00 Session 2d (15+15) --- Analysis Path with FSRoot --- Malte Albrecht (Video)
- 16:30 Session 2e (15+15) --- Using AmpTools to Extract the a2 Yield --- Matt Shepherd (Video)
- 17:00 Session 2f (15+15) --- Efficiency Correction and Flux Normalization — Jon Zarling (Video)
- 17:30 Q&A
- 18:00 Adjourn
Registration
Please add your name to the list of attendees below. No formal registration or registration fee is required.
| Name | Home Institution | Level | Participate at JLab |
|---|---|---|---|
| Alex Austregesilo | JLab | Staff | Yes |
| Matt Shepherd | Indiana U. | Prof. | Yes |
| Alexandra Berger | University of Glasgow | Student | Yes |
| Vitor Shen | Ruhr University Bochum | Graduate Student | Yes |
| Savio Cao | Florida State University | Student | Yes |
| Simon Taylor | Jlab | Staff | Yes |
|}
Recording
- Links to video recordings hosted on YouTube are given in the agenda above.
- A video recording of this workshop can be found on the JLab CUE in: /cache/halld/workshops/physics_workshop_2025/recordings
- 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_2025/recordings/*
