HADES-CrAP

HADES Corelation Analysis of Protons

Prequisites

• HYDRA version 7.0 or greater
• vae24

Directory Structure

The important part of this repo looks as follows:

.
├── FemtoMixer/
│   ├──  EventCandidate.hxx
│   ├──  EventUtils.hxx
│   ├──  JJUtils.hxx
│   ├──  MdcWires.hxx
│   ├──  PairCandidate.hxx
│   ├──  PairUtils.hxx
│   ├──  Target.hxx
|   └──  TrackCandidate.hxx
├── Includes.h
├── LICENSE
├── loopDST/
│   ├──  analysis.cc
│   ├──  listsApr12/
|   └──  sendScript_SL.sh
├── macros/
|   └── *.cc
├── newFemtoAnalysis.cc
├── newQaAnalysis.cc
└── README.md

• FemtoMixer/ - Contains my classes which are used for structuring and slecting events, tracks, and pairs, as well as helper functions used in my macros
• Includes.h - HYDRA include list, this file is included in my HYDRA-related analysis macros (newFemtoAnalysis.cc and newQaAnalysis.cc).
• loopDST/ - Contains macros and file lists for submitting an analysis which uses standard DSTs.
• macros/ - Contains all of my macros, some of them are obsolete. I will remove them eventually (yeah sure I will...).
• newFemtoAnalysis.cc - My currently used macro fro runnig femtoscopic analysis.
• newQaAnalysis.cc - My currently used macro fro runnig QA analysis (a lot of duplicate code with newFemtoAnalysis.cc).
• README.md - What you're reading right now.

1. FemtoMixer/

• EventCandidate.hxx, TrackCandidate.hxx, PairCandidate.hxx - classes which define structures of event, track and pair of tracks respectively
• EventUtils.hxx, PairUtils.hxx - classes wchic contain functions used for the process of femtoscopic mixing, which is needed for my mixer
• MdcWires.hxx - collection of functions, objects and constants used for wrapping information from HParticleMetaMatcher regarding the MDC wires
• Target.hxx - compile-time information of target selection in X, Y, and Z for Apr12 and Feb24
• JJUtils.hxx - collection of helper functions used in my macros

Note

All of the classes and functions are documented using Doxygen, which is also configured here. Just run doxygen in this directory to generate an HTML documentation

2. loopDST/

Standard implementation as in any other HADES analysis.

• analysis.cc - main file for running my macros with analysis (newFemtoAnalysis.cc and newQaAnalysis.cc)
• sendScript_SL.sh - shell script used for sending the compiled analysis.cc binaries to the job farm
• listsApr12/ - directory containing paths to every DST and simulation file (day-by-day and all of them at once)

To run type make and once compilation is successfull run the shell script with . sendScript_SL.sh.

3. macros/

Not all of the macros listed in this directory are in current use. The ones which are consist of:

• femtoMerge1D.cc and femtoMerge3D.cc - macros for summing signal and background histograms (appends _processed to the end of the file)
• drawProton1DInteg.cc and drawProton3DIntegrated.cc - macros for drawing correlation function integrated over whole phase space (appends _Integ to the end of a file)
• drawProton1DMultiDIff.cc and drawProton3DMultiDiff.cc - macros for drawing phase space differential correlation functions (e.g. kT-differential)
• makeMomResCorrection1D.cc - macro for correcting the correlation functions for imperfect momentum resolution (appends _momRes to the end of the fule)
• fromHADEStoHAL.cc - macro for convering the X axis of the correlation function histograms from LCMS to PRF (appends _forHAL to the end of the file)
• plotHBTscaling.cc - macro for drawing the radii obtained from the fit

As an example, the process of running the macros to generate results for 1D analysis in 0-10% centrality is as follows:

1. root -q -b femtoMerge1D.cc++g
2. root -q -b drawProton1DInteg.cc++g
3. root -q -b drawProton1MultiDiff.cc++g
4. hadd -f 1Dcorr_0_10_cent_Purity.root 1Dcorr_0_10_cent_Integ.root 1Dcorr_0_10_cent.root (this step is a substitution for purity correction which I don't make)
5. root -q -b makeMomResCorrection1D.cc++g
6. root -q -b fromHADEStoHAL.cc++g
7. Run your fitter
8. root -q -b plotHBTscaling.cc++g