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[[Star-fwd-software-l] ] 10M+ events in Pico Format

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  • From: "Brandenburg, Daniel" <brandenburg.89 AT osu.edu>
  • To: "star-fwd-software-l AT lists.bnl.gov" <star-fwd-software-l AT lists.bnl.gov>
  • Cc: "Korodi, Balazs" <korodi.9 AT buckeyemail.osu.edu>, Akio Ogawa <akio AT bnl.gov>
  • Subject: [[Star-fwd-software-l] ] 10M+ events in Pico Format
  • Date: Fri, 25 Apr 2025 14:42:27 +0000

Hi All,

 

There are 10M+ events in PicoDst format here:

/gpfs01/star/pwg_tasks/FwdCalib/PROD/forwardCrossSection_2022/25042025/

 

  • PicoDst saves events even without TPC vertex
  • FST only (I am testing, as FTT may be biasing tracking)
  • FST uses plane-per-sensor but without misalignment (ideal geometry)
  • Good tracks === ( mNFitPoints==3  + chi^2>0 && chi^2 < 65) ***
  • mVtxIndex == 0 (and mNumFitPoints==4) for primary tracks
FST cov matrices are blown up by x2, x50 (r, phi)

 

 

*** Chi2 is stored as an integer in the PicoDst – so if you read directly you can chi^2 = mChi2/1000.0f

 

Looking forward to hearing feedback!

 

 

Daniel Brandenburg

Assistant Professor

College of Arts and Sciences

Department of Physics

Ohio State University

 


  • [[Star-fwd-software-l] ] 10M+ events in Pico Format, Brandenburg, Daniel, 04/25/2025

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