Problem 2325

Summary: *** G4Exception : had006 issued by : G4HadronicProcess::PostStepDoIt
Product: Geant4 Reporter: joukov
Component: processes/hadronic/models/parton_string/managementAssignee: Alberto.Ribon
Status: RESOLVED WONTFIX    
Severity: major    
Priority: P4    
Version: other   
Hardware: All   
OS: All   

Description joukov 2021-02-04 16:15:01 CET
In simulations, antiD interaction  with material leads to occasional exceptions
(one out of 10k events)


-------- EEEE ------- G4Exception-START -------- EEEE -------
*** G4Exception : had006
      issued by : G4HadronicProcess::PostStepDoIt
In ../hadronic/models/parton_string/management/src/G4VPartonStringModel.cc, line 81:
===> G4VPartonStringModel::Scatter(): fails to generate strings
Call for FTFP
Target element /dd/Materials/Hydrogen  Z= 1  A= 1
Unrecoverable error in the method ApplyYourself of AntiDeuteronInelastic
TrackID= 262  ParentID= 0  anti_deuteron
Ekin(GeV)= 34.4954;  direction= (-0.04129,0.0169304,0.999004)
Position(mm)= (-370.982,198.161,12867.6);  material /dd/Materials/Ecal/EcalSc
PhysicalVolume  </dd/Geometry/DownstreamRegion/Ecal/Modules/InnStack#Inner_Cells_Matrix:5>
 ApplyYourself failed

*** Fatal Exception *** core dump ***
-------- EEEE -------- G4Exception-END --------- EEEE -------


*** G4Exception: Aborting execution ***
Comment 1 Gabriele Cosmo 2021-02-05 08:30:13 CET
*** Problem 2326 has been marked as a duplicate of this problem. ***
Comment 2 Alberto.Ribon 2021-03-11 15:32:53 CET
Thanks for the feedback, but I am unable to reproduce it, after running millions of anti_deuterons of 34.4954 GeV kinetic energy on G4_H target. I have tried also different versions of Geant4 (today's development, 10.7.p01, 10.6.p03).
So, I cannot fix anything.