e1039-analysis/AnaSimDst

A compact program to analyze the simulated DST file, which is created by the SimChainDev package. Since it is yet under development and also depends on other software under development, it might stop working occasionally. In such cases, please contact the author.

Analysis Flow

1. DST -> Micro DST (uDST)
   • By macro Fun4SimDst.C.
   • To reduce the data size.

1. uDST -> Tree
   • By macro Fun4SimMicroDst.C
   • To further reduce the data size & calculate your custom quantities.

1. Tree -> Plots
   • By macro Fun4SimTree.C
   • To draw your quantities with various conditions.

When the data size is small enough or the analysis logic is simple enough in your analysis, you can put all the steps in one macro.

Basic Usage

You can try the following procedure to go through the whole analysis flow.

Preparation of Simulated DST Files

You first produce a set of simulated DST files by SimChainDev. This document assumes that the top directory of your simDST files is /your/dst/dir. It can be either relative or absolute.

The following command lists up all simDSTs into list_dst.txt; ``` cd e1039-analysis/AnaSimDst/work ./make-dst-list.sh /your/dst/dir ``` You might manually create or edit the list file as you need.

Compilation of Analysis Code

The analysis code is located in e1039-analysis/AnaSimDst/src. The following commands set up the shell environment and compile the code; ``` cd e1039-analysis/AnaSimDst source setup.sh cmake-this make-this ``` You are expected to later look into the script and the analysis code to make your own analysis logic.

Execution of Analysis

The 1st step is to create uDST from DSTs. The following commands reads five simDSTs for test. The uDST file is uDST.root. ``` cd e1039-analysis/AnaSimDst source setup.sh cd work root -b -q 'Fun4SimDst.C(5)' ```

The 2nd step is to create Tree from uDST, by the following command. The TTree object is outputted to sim_tree.root. ``` root -b -q Fun4SimMicroDst.C ```

The last step is draw plots from Tree. ``` root -b -q Fun4SimTree.C `` Various plots are outputted toresult/`.

If all the commands ran fine, you delete (5) (or change to (0)) in the 1st step to use all DSTs.

Advanced Usage

cmake-this

You should execute this function when you add/delete files under src/. It is a shell function defined in setup.sh. It calls 'cmake' with a proper configuration. It cleans up all files in the build & install directories.

make-this

You should execute this function when you modify files under src/. It is a shell function defined in setup.sh. It calls 'make install' with a proper configuration.

Author

Kenichi Naknao knaka.nosp@m.no@n.nosp@m.ucl.p.nosp@m.hys..nosp@m.titec.nosp@m.h.ac.nosp@m..jp