1. CMS requirements for G4 TF on 30.03.06
Maya Stavrianakou
FNAL
G4 Technical Forum

2. Requirements CMS subscribes to (I)
optimization of tracking parameters in the magnetic field
possibility of releasing the track stack on request (G4Allocator)
centralization of MCtruth scheme in the different experiments
tool for optimization of tracking in magnetic field
possibility of customizing volumes/solid at creation step
Savannah bug report: problems in G4ExcitedStringDecay
hadronic shower code improvements incl.GHEISHA bug fixes
verification of elastic scattering process/models in energy range 1,5-15 GeV for pion and proton incident
'composite' action of each user action type
‘global’ verbosity setting, which the user can use to request minimum verbosity from all verbose Geant4 components
unique set of physics lists
optional printout of created processes
G4 Technical Forum

3. Requirements CMS subscribes to (II)
option not to suspend tracks
adding touchable to secondaries
more details in error messages
treat particles with dipole moments
gcc 3.4.3
statistical test suites for most sensitive physics quantities
G4 performance
documentation on the technical aspects of all physics processes
extension of Ion hadronics interaction to cover a good part of the cosmic ray range in (A,Z) and energy
“intuitive” documentation of the physics lists
optical photon transport in setups with repeated volumes
selective verbosity
count of secondaries created this step
identifying a process efficiently
G4 Technical Forum

4. CMS requirements AUTOCAD input - D. Stickland - mostly addressed
may have additional reqs as to level of detail
Visualization of boolean solids - Y. Osborne
e.g. G4 BooleanProcessor fails to create G4 subtraction solid out of shapes sharing surfaces
Improvements in Gflash - J. Weng
Details to follow after full porting to new CMS framework
Verbosity control in hadronics - M. Stavrianakou
non-G4Messenger handles
Process tuning control (threshold, cut setting etc) - M. Stavrianakou
Neutron shower parametrization
G4 Technical Forum