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

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Meeting ID: 160 199 0060 Passcode: 8394

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Meeting ID: 160 199 0060
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It is not necessary to have gone through the previous workshop talks, but you will probably benefit if you do.

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

DRAFT

Overview: Event reconstruction, tracking, kinematic fit (tbd)
Overview: Amplitude Analysis, Moments and SDMEs (Boris)
Overview: Cross Sections (tbd)
SciComp, GlueX Environment and Batch Farm (Alex)
- containers: provide container with everything included?
Generators (tbd)
- gen_amp_V2, bggen, genr8
MCWrapper (Peter)
DSelector (Edmundo)
- may touch Reactionfilter, uniqueness/combinatorics
FSRoot (tbd)
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

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

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/*