Minutes of 06 December 2012 Meeting of Geant4 Technical Forum





Editor: A. Morsch, 6 December 2012



- Starting at 16:00



Geant4 9.6

===========

+ See slides



EM physics highlights

=====================

+ See slides

comment to slide 11

option 2 can be selected adding _EMX (for example FTFP_BERT_EMV)



Hadronic physics highlights

===========================

+ See slides

comment to slide 5

limits for energy non conservation (10%, 5 GeV) very generous.

John: tighter limits for developpers can be set via environment variables



Towards Geant4 version 10

==========================

+ See slides



Open Requirements

=================

+ See slides 

- 2901 closed

- 2902 needs feedback from LHCb

- 3201 closed

- 2701 closed



New Requirements



ATLAS

=====

+ See slides

- to slide 4: Infinite Loop in G4SubtractionSolid

 - G. Cosmo: a fix is included since patch release 9.5.p02 and is
 recommended to be used.

 - problematic geometry needed for testing

- to slide 6: Transport if short lived particles (D/B)

 - problem is with hadronic cross-section

 - needs particle level simulation to evaluate order of magnitude

 of expected effects

- to slide 10: random number generator and Gaussian distribution

 - should be part of CLHEP.

 - should be verified that it is portable.

 

CMS

===

+ See slides



Mu2e

====

+ See slides

- to slide 5 point 5: suppression of warning messages

 - John: should be printed at least once to inform user 

- to slide 5 point 6: list of known problems for release

 - To be added as an appendix to the release notes



MINOS, Minerva, ArgoNeuT, NOvA, MicroBooNe and LBNE

===================================================

+ See slides

 - request for better documentation of physics lists

 - 'grepping' from log-file not satisfactory

 - no updates for nu-interactions needed



Proposed Changes to AtRest Stepping Logic 

=========================================

+ See slides