Page tree

Generator

  • physics:
    • define samples:  
      • DBD 
        + WIMP analysis samples (signal & background)?
        + Higgsinos? Jackies or Hales?
      • how about 6f? Not generated for DBD at 250 GeV, but processes like WWZ and vvWW etc should in principle be open?
      • general purpose Bhabhas?
      • question from Daniel: status of tau polarisation in Whizard2 => can be checked on existing small test samples
        transverse tau polarisation: Akiya did some work, unclear status
    • Number of events for each processes.  Especially large Xsect. processes, such as 2f, 1f, 3f.
    • Radiative return to Z events. Generate separately or generate all process together.
    • Naming convention of whizard2 samples and directory structure → ok up to 4f, iterate 6f
  • general:
    • verify batch mode
    • tag Whizard version?
  • ee: 
    • generate events
      • 2f
      • 4f
      • 6f
  • ea / ae / aa:
    • create lumi spectra  and z-position of vertex distributions => done
    • generate events!
  • aa overlay : waiting for Tim... => remind....
  • seeable pairs:  fine, on Dirac

Simulation

  • selection / adjustment of DD4HEP detector model
    •  use the existing ILD_l5_vo2 => no validation needed
  • create ddsim steering / config files for 250 GeV 
  • z vertex distributions for ee / ea / ae / aa => Remi has put them in ILDConfig:
  • verify that photon cluster position effect is not due to cell geometry problem   => expected? Then calibration issue?
    • simulate full pairs     => done            => tune BeamCal reco!
    • need to create BeamCal bg-map for large (and small) 250 GeV models
      • w/ and w/o anti-DID
      • for standard reco use same as for 500 GeV (w/ anti-DID ?)
  • simulate seeable pairs
  • simulate aa overlay
  • simulate single particles for calibration   => verify that LumiCal / LHCal are covered!

Reconstruction

  • solution unknown:
    • muon reconstruction failure at costheta = 0.6   => needs 4 FTE weeks =>Moritz
    • photon cluster position / angle bias  => theta "just" a calibration/correction issue,   phi unclear? => Daniel
    • photon energy calibration consistent with Pandora calibration
            => needs deep thinking on Pandora calibration strategy, Daniel will take a look once tautau benchmark is done
    • z0/d0 errors in fwd region => on a good way, fix requires time?
  • solution / procedure known:
    • tune BeamCal reconstruction → ongoing (Moritz)
    • calibrate LumiCal & LHCal ???
    • update parameters for beam spot constraint (LCFI)
  • validation!

Production

  • disk space (Cannot use tape back-end anymore) => estimate need: ~200 TB
      => mc-opt3 currently is 600-700 TB => 1 detector model = 350 TB
                     
    keep only 10% of REC files (but all SIM files) => 25% less ?
                     (hybrid simulation, reco only SiW + AHCAL)
  • Installation of DESY new disk ?
  • Save sim files of all events, but save REC files only for a fraction of events => implemented by Akiya
  • Required statistics : 2ab-1 for each channel?
    Estimate required disk space and CPU times for required statistics.
    → How about the large cross-section channel? (2f, 4f)
    → How about the 6f samples?
  • update production scripts
    • make sure whizard2 lcio file splitting works=> Confirmed(Akiya)
    • Update for new directory structure and file name conventions.
      → Revisit file name convention : "wizard2" as "w2"? 
      ==> (Akiya) Same as the previous productions. Namely no generator name in production files.
    • simulate aa_lowpt and seeable pair background files. Update scripts to 250 GeV background files.
      ==> (Akiya) Small number of background files will be produced with ILCSoft/ILDConfig v02-00-02, for validation.
  • Need small whizard2 samples of various process type for development of production scripts.
              ==> (Akiya) Small samples (2f, 4f, aa_2f, 3f/5f ) have been produced.  Modifying production scripts to adapt new naming convention.
  • Save tar-gzipped log files on tape directory.
  • File save location : DESY-SRM as primary and KEK-SRM as secondary.
  • BG samples situation

     

    Gen TDR

    Gen Set A

    SIM TDR

    Sim Set A

    aa_lowpt

    Produced

    Not yet (Tim)

    Produced

    Not yet

    seeable pair

    No

    Produced (Mikael)

    No

    Not yet v02

    IP smear

    No

    Apply

     

     

    Nb of ExpBg

    AvailableNot yet

Solved issues (for new productions)