LHCb is reporting the following crash in FTFP_BERT (9.5.p02): In ../hadronic/models/parton_string/management/src/G4VPartonStringModel.cc, line 102: ===> G4VPartonStringModel::Scatter(): fails to generate strings -------- EEEE ------- G4Exception-START -------- EEEE ------- *** G4Exception : had006 issued by : G4HadronicProcess::PostStepDoIt Call for FTFP Target element /dd/Materials/Iron Z= 26 A= 56 Unrecoverable error in the method ApplyYourself of KaonPlusInelastic TrackID= 5326 ParentID= 1012 kaon+ Ekin(GeV)= 4.6748; direction= (0.0420371,-0.0419766,0.998234) Position(mm)= (787.033,-635.045,14186.2); material /dd/Materials/Hcal/HcalMsPlSteel PhysicalVolume </dd/Geometry/DownstreamRegion/Hcal/Cells/lvHcalInnCellUpMsPlBox#pvHcalInnCellUpMsPl> ApplyYourself failed *** Fatal Exception *** core dump *** -------- EEEE -------- G4Exception-END --------- EEEE ------- *** G4Exception: Aborting execution ***
The bugs were in the PutOnMassShell method of the file G4FTFModel.cc. The correct file (G4FTFModel.cc) with the fixes has been provided to LHCb. A branch to processes/hadronic/models/parton_string/diffraction has also been created to include the bug fix (internal tag: hadr-string-diff-V09-04-12), in the case of a future patch G4 9.5.p03 (not planned at the moment). The bugs in PutOnMassShell are also affecting G4 9.6.p01, whereas they have been fixed in the coming G4 9.6.p02 (and in the development version G4 9.6.ref04c as well).
G4.9.6P03 has not fixed this problem. G4FTFModel.cc is written in 1998 as before. And the problem below is still exist. Does anyone can help me? Thanks and best regards! sincerely, geng ============================================ ===> G4VPartonStringModel::Scatter(): fails to generate strings ===> G4VPartonStringModel::Scatter(): fails to generate strings Call for FTFP Target element H Z= 1 A= 1 Unrecoverable error in the method ApplyYourself of alphaInelastic TrackID= 1 ParentID= 0 alpha ================================================== (In reply to comment #1) > The bugs were in the PutOnMassShell method of the file G4FTFModel.cc. > The correct file (G4FTFModel.cc) with the fixes has been provided to LHCb. > > A branch to processes/hadronic/models/parton_string/diffraction has also been > created to include the bug fix (internal tag: hadr-string-diff-V09-04-12), in > the case of a future patch G4 9.5.p03 (not planned at the moment). > > The bugs in PutOnMassShell are also affecting G4 9.6.p01, whereas they have > been fixed in the coming G4 9.6.p02 (and in the development version G4 > 9.6.ref04c as well).
