1. First look, Aug.10 (My working directory is : /star/data01/pwg/tnonaka/GPC/AuAuFixedTarget4_5GeV)

• Try to reproduce the results of Au+Au collisions at 4.5 GeV according to HOW-TO_CODE_READE.txt.
•  AuAu4_5.C has been successfully executed with auau4_5.xml. Files with "ftree" created. (without ~/140/)
  • "path~/140/“ is specified in file catalogue in auau4_5.xml, why?
  • Answer from Terry : those runs are for fixed target. The trigger for those specific runs was "fixedTarget2015", which contains only one trigger ID.
  • There are many comment out in AuAu4_5.C due to various careful checks by analyzer. It would be better if sentences that is unnecessary to reproduce the final results can be removed.
• Next I executed “TTree::MakeClass(“DecodeTree”)”, and copied and pasted codes from MyMuDst.C to DecoeTree.C.
  • "MuDst.h" referred in MyMuDst.C does not exist, so I created it by TTree::MakeClass() 
• According to the instruction, two binary files are created. However, once I run the command ./strip3, following error occurs.
  —————————————————
  fit para loaded 
  NchPion NegEta cuts set
  Refmult NegEta cuts set
  Writing to file AuAu_identified.bin
  This version suppresses electrons and accepts protons
  Begin file 1, nanoAuAu4_5GeV.bin
  Segmentation fault
  —————————————————
  • "doFiles.C" is provided by Terry to create "MuDst.h" as well as "MuDst.C". Please modify the instruction accordingly.
  • The cause of the segfault with 'strip3' is a mismatch between your binary file names and what is in 'goodRunsOut.txt'. Edit your goodRunsOut.txt so that it contains the following three lines:
    1
    nanot4_5GeV.bin
    nanot4_5GeV_header.bin

******************************************************************************************


      2. Second look, Aug 14

• "AuAu4_5.C" is executed for with "path~/140/" in "auau4_5.xml". Around 1.3M events recorded.
  • There does not seem radial vertex cut. Need Vr<2cm??
• root -b -q doFiles.C (MuDst.C and MuDst.h are created)
• root -b
  • .L MyMuDst.C
  • .L init_files.C
  • .L write_header.C
  • .L write_track.C
  • MuDst t
  • t.Loop()

• make strip3.C
• ./strip3 (finished smoothly)
• make nudyn_scan.C
• ./nudyn_scan
  • Segmentation fault at the last of nudyn_scan??
  • Various files are written in precision_eta_1.00. 
    • explanation for each output would be helpful.
    • instructions to construct the final results from those outputs would be also helpful.

• cat precision_eta_1.00/nudyn.txt
  • The first line corresponds to 0-10% centrality, which is consistent with results in Fig.1 at AuAu Fixed target at 4.5GeV. 

• Finally, provided codes work smoothly without problems, and also νdyn+- in Fig.1 (AuAu 4.5GeV) have been reproduced.