Mandate

• Prepare a reasonable amount of examples which cover all functionality's provided by GEANT4

Schedules

~ Nov.97 Item list

~ Mar.98 Scenarios of examples
~ Jul.98 preliminary release with GEANT4-beta
~ Dec.98 full release

Member

At least one presence from each category

Everybody are welcome to be the member

study, evaluate, and select the best of existing models

design the object model

implement

beta for mid ‘98.

provide theory driven models and parametrisation based models for high energy hadronic reactions

extend the validity of the energy range for hadronic interaction to very high energies

small working group is forming (CERN,Atlas/Valencia, Alice, BaBar)

encourage and help authors of existing MC event generators to re-design their code in OO

primary hard and/or soft interaction

• secondary particles

intranuclear cascade

• additional secondaries

excitation energy

preequilibrium decay

thermalisation, evaporation/fission

some models merge primary and INC interactions

models treat nuclear geometry

high energy generator models seem to neglect excitation energy, nuclear breakup, etc.

evaluate what is needed to complete high energy generator model(s)

forget current software

build your own model

• study physics knowledge of generators to re-use physics models
• take best of all

different approaches to simulate physics processes at high energies

• parametrisation based models, currently implemented in Geant4
• theory driven models

part of next years’ milestones:

use event generator(s) `as is`

• at high energies these models are in good agreement with measured data; physics is well modeled
• well tested/tuned in recent experiments
• but tested/tuned as event generators