DD4hep Developers Meeting



Andre Sailer (CERN), Markus Frank (CERN)

Please Join DD4hep developer's meeting via Zoom

DD4hep Developers Meeting
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Marko Petric
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Present:  M.Frank, C. Vuosalo

1) Pending problems1.1) Pending problems reported by Sang Hyun Ko:
     - Cannot setup Birk's constant as material property.
     - No analogy to G4PVParametrized. Unclear if a solution is possible.
1.2) Add GFlash parameterisation to DDG4 (issue #802)
1.3) Problems with ROOT-python compatibilities (issue 842)
       ==> Waiting for Paul to provide a PR
1.4) DDG4: isotropic gun distribution also forces uniform momentum distribution #862
       ==> Waiting for Wouter to provide PR

1.5) DD4POD: Waiting for PR from Whitney
1.6)  PluginFactoryBase::make_return problem with longs (Issue 875)
1.7) New release of Geant4 11.0.0 (fails to build for M.Frank)
1.8) ROOT issue: for G4 units the radiation/interaction length is wrong by a factor 10
       -- For CMS this problem does not show up.
       -- Should only enter AFTER simulation (Geant4 materials do not have the radiation length as input)

       -- Need to address this issue early next year.

2)    Closed issues and fixed problems
2.1) Geant4 11.0 beta open issues between snapshot compilation ==> Dropped
       See above for the released version of Geant4 11.0.0

3) Round table
3.1  Markus:         ---
3.2  Carl:              ---

4) AOB

I would like to wish everybody Merry Christmas and a happy New Year!

Next meeting:   13.January 2022

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    • 3:30 PM 3:50 PM
      Around the table 20m