Problem 510

Summary: Missing recoiling nucleus for some hadronic interactions
Product: Geant4 Reporter: juerg.beringer
Component: processes/hadronicAssignee: Gunter.Folger
Status: RESOLVED WORKSFORME    
Severity: normal    
Priority: P2    
Version: 5.2   
Hardware: PC   
OS: Linux   

Description juerg.beringer 2003-07-16 04:32:33 CEST 
For most physics lists, when one looks at the tracks presented in the user
stacking action routine, the recoiling nucleus is present. This is e.g. the
case for the QGSP_BIC example physics list. But for interactions of 800MeV
protons on Pb (and presumably for other materials/energies etc as well), every
few hundred events I see only a single outgoing track, which is in most cases
a p, but occasionally a pi or n.

I saw this with Geant4 5.2 on CERN RedHat 7.3, gcc 3.2, PACK 0.5 and QGSP_BIC
version 2.1.
Comment 1 Hans-Peter.Wellisch 2003-07-16 11:10:59 CEST 
Hi Gunter,

  can you look at this?

Many greetings,

Hans-Peter.