Revision as of 16:09, 3 April 2025

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→ηπ⁰p

Location and Time

The workshop will take place at:

DATES: May 12, 2025

LOCATION: CEBAF Center F113

Remote Participation

+16692545252,,1608686187# US (San Jose)
+16468287666,,1608686187# US (New York)

+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

11601990060@sip.zoomgov.com

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.

• 2013 Workshop Link
• 2016 Workshop Link
• GlueX Tutorial 2018
• GlueX Tutorial 2019
• GlueX Tutorial 2022

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

• Overview: Amplitude Analysis, Moments and SDMEs (Boris)
• Overview: Cross Sections (tbd)
• Overview: Event reconstruction, tracking, kinematic fit (tbd)
• SciComp, GlueX Environment and Batch Farm (Alex)
  • containers: provide container with everything included?
  • git(hub): best practices
• Generators
  • gen_amp_V2 (Kevin), bggen_upd (Eugene)
• MCWrapper (Peter)
• DSelector (Edmundo)
  • may touch Reactionfilter, uniqueness/combinatorics
• FSRoot (Amy)
• amptools (tbd)
• fit result aggregation and analysis using python (Kevin)
• pyamptools and other tools (Lawrence)
• AI/ML for event selection?

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.

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/*