Old Physics Analysis

This page is intended to provide access to the various physics analysis topics that are being pursued with the GlueX detector. At this stage these typically consist of Monte Carlo studies which help demonstrate the feasibility of a particular analysis.

Ongoing Analyses

• Simulations of cascade baryons (Nathan Sparks)

• Analysis of gamma p --> eta pi0 p (Irina Semenova and Andrei Semenov)

Physics at the Information Frontier Center

• Collaborative Analysis Toolkit Wiki

Expected Statistics for GlueX

• Expected Statistics for GlueX

Documentation/Studies

• Potential GlueX Physics During the First Two Years of 12 GeV Running
• Talk:The First Two Years of GlueX Physics
• Simulations of Exotic Mesons in GlueX
• Calorimeter physics simulations and reconstruction for the Calorimetry Review (GlueX Portal)
• PrimEx at GlueX
• Photoproduction & Lattice QCD
• A Summary of Hybrid Masses and Decays
• Radiation length scans
• b1pi with GlueX Monte Carlo

Software Analysis Tools

1. JANA-based GlueX Analysis Framework:
   1. GlueX Analysis Library: JANA-based, details on GlueX reconstruction classes, event selection, etc.
2. Partial Wave Analysis Tutorials
   1. pwa-ruby wiki : An installation and usage howto for the ruby-pwa code. The site also includes a fully worked out simple example.
3. The qft++ code
   1. The qft++ code was developed by Mike Williams at Carnegie Mellon University to facilitate analytic calculation of tree-level diagrams for partial wave analysis.
   2. Details can be found on the qft++ Website.
   3. A paper has also been submitted to Comp. Phys. Comm. (2008). arXiv:0805.2956
4. Software Packages
   1. The Ruby-Minuit Package Ruby-Minuit is a Ruby binding to CERNLIB's MINUIT package (which is written in FORTRAN). It provides access to MINUIT's powerfull minimization routines from the infinitely flexible Ruby language.
   2. The qft++ package was written (in C++) to numerically calculate quantum field theory expressions. The API was designed such that the code strongly resembles the hand-written expressions.
5. Maximum Likelihood Fitting.
   1. A short note on maximum Likelihood Fitting.
6. A generalized background subtraction method was developed to facilitate the baryon PWA done at CMU. This has been published as JINST 4 P10003, (2009), arXiv:0809.2948.

Useful Articles

• Article Archive from Curtis
• Reconstruction References

Meetings

Physics Working Group Meetings

BCAL Reconstruction Work

Useful Links

• Institute for Nuclear Theory (INT) workshop in November 2009
• Workshop on photon-hadron physics with the GlueX detector
• JLab PWA wiki