GlueX Tutorial 2025
Contents
[hide]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
Join ZoomGov Meeting https://jlab-org.zoomgov.com/j/1601990060 (Click "Expand" to the right for more details -->):
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
- 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 (tbd)
- gen_amp_V2 (Kevin), bggen, genr8
- MCWrapper (Peter)
- DSelector (Edmundo)
- may touch Reactionfilter, uniqueness/combinatorics
- FSRoot (Amy)
- amptools (tbd)
- 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.
| Name | Home Institution | Level | Participate at JLab |
|---|---|---|---|
| Alex Austregesilo | JLab | Staff | Yes |
| Matt Shepherd | Indiana U. | Prof. | 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/*
