DD4hep Developers Meeting

Thursday 10 Feb 2022, 15:30 → 16:00 Europe/Zurich

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Andre Sailer (CERN), Markus Frank (CERN)

Please Join DD4hep developer's meeting via Zoom

Present:  M.Frank, P.Gessinger-Befurt, T.Madlener, A.Sailer

1) Pending problems

1.1) 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) 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.
1.8) Proposal to configure special material properties (Birk's constant.) (Issue 890)
1.9) Need to address issue 844. Warning messages are annoying.

2)    Closed issues and fixed problems
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None

3) Round table
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3.1)  Markus:          ----
3.2)  Andre:            Warnings in the simulation in the CLIC detector model.
                               To be sorted out.
3.3)  Carl:               Warnings - see above.
3.4)  Frank:            Having GFlash would be really nice!
                               Will update requirements in the github issue.
3.5)  Thomas:         ----
3.6)  Valentin:         EDM4hep in ddsim. Looking into EDM4hep input to ddsim.

4) AOB
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Next meeting:   24. February 2022
 

15:30 → 15:50 Around the table