Minutes of 14 January 2015 Meeting of Geant4 Technical Forum
Editor: A. Morsch, 14 January 2015
- Starting at 16:10
General introduction of version 10.1 and prospects
==================================================
+ see slides
Important question to users: How long should version 9.6 be supported?
Expect answer by next TF meeting, early spring 2015.
Highlights of version 10.1 - non-physics part
=============================================
+ see slides
Q: How much has the API changed ?
A: No changes between versions 10.0 and 10.1
Many changes for 10.0 but mainly related to the multi-threaded mode;
invited to look at the release notes in the chapter
"Items for migration of the user code".
on slide 9,
- New framework for âgenericâ biasing for physics-based biasing â first in 10.0
M. Verderi: The generic biasing framework allows to change probability of
occurrence of physics processes. The exponential-law can be changed, which needs the
knowledge of the cross-section. The cross-section is now available at the beginning
of each step.
User can implement biasing through simple abstract base classes. Examples are provided.
Highlights of version 10.1 - EM Physics
=======================================
+see slides
Highlights of version 10.1 - Hadronic physics
=============================================
+see slides
on slide 13, bug in neutron elastic cross-section
V. Ivantchenko: _TRV physics lists are not affected, they use different cross-sections.
Open requirements
=================
+see slides
3602
CMS uses so called "big plugin approach", a hybrid between shared and static libraries.
Requirement not an issue anymore for CMS.
**** New Requirements
ATLAS
=====
+ see slides
Suggesting to hold a third LPCC Workshop towards end of the year to discuss results
on new data.
Makoto concerning slide 4, HepMC format:
In the past HepMC design has diverged and has been formally dropped.
If HepMC3 interface has converged it can be reintroduced into Geant4.
CMS
===
+ see slides
FNAL Intensity Frontier experiments
===================================
- on slide 4, anti-proton production, discrepancy between data and Geant4 FTFP
A. Ribon: One should compare to FTFP_BERT and see whether this makes a difference.
Meeting Date