standaloneHbt

Package for analyzing two-particle correlation function, derived from STAR collaboration.

Table of Content

• Starter
• Directory Structure
• Usage
• Instruction

1. Get Started

The only dependency of the repository is ROOT. To start, clone the repository git clone https://github.com/nscl-hira/standaloneHbt.git and source ${your_ROOT}/bin/thisroot.sh.

2. Directory Structure

• database : contain all metadata and input for HiRA analysis.
• StarClassLibrary : A outdated library for utilities and physics functions. Thoguh not extensively used, they are kept to avoid change in compilation.
• StHbt : source codes for the analysis of two-particle correlation function
• HbtUserCode : source code HbtUserCodeized to read and analyze data of a particular experiment.
• macros : contain driver codes

3. Usage

To compile all required libraries, simply navigate to the directories and make in the order:

cd StarClassLibrary
make 
cd ../StHbt
make 
cd ../HbtUserCode
make

Then, you should be able to run the analysis macro in the root directory of the project:

root macros/load.C macros/analHiRA.C

4. Instruction

To develop the source code for reading and analyzing CF, users need to write the codes in the directories HbtUserCode. These classes in ./HbtUserCode are mostly derived from those the base classes in StHbt.

• HbtUserCode : construct classes derived from those in StHbt
  • Reader: an event reader according to the format of data.
  • Cut: set up gates to veto unwanted entity
  • CorrFctn: define the correlation function based on the pair information.