Plan2016

ELECTROMAGNETIC WORKING GROUP 
plan of activity for 2016
=======================================

(1) - June 2016
(2) - December 2016
(*) - will be done if manpower will be identified
[LE] - in collaboration with the Low-energy EM working group

---------------------------------------------------------------

1) Infrastructure and general support for EM physics
- migration remaining EM and medical examples to multi-threading (1/2)
- introduction of elements of C++11 into EM code (1/2)
- ATLAS tilecal problem (1/2)
- ATLAS EM shower shape (1/2)
- CMS EM shower shape in combined testbeam (1/2)
- ALICE EM physics configuration (1)
- ALICE TRD physics (1)
- CALICE calorimeter simulation (1/2)
- improve computation of range and energy loss of alpha in G4EmCalculator (1)

2) Validation and verification of EM physics
- perform regular execution and regression analysis using existing
testing suites (1/2)
- Extended testing suite - migration to cmake, to Geant4 internal
analysis software, and migration to MT where possible (1/2)
- continue detailed comparison of Standard, Livermore,
Penelope, and DNA models [LE] (1/2)
- extend backscattering tests in the testing suite (2) [LE]
- add CALICE calorimeter tests, focusing on lateral shape (2) (*)
- add Cerenkov calorimeter test (2) (*)
- add bremsstrahlung benchmark (2) (*)
- development of electron line-shape test in sampling calorimeter (2) (*)

3) Further development of the processes of multiple and single scattering:
- study on of the displacement beyond boundary algorithm (1) [GE]
- further development of the Goudsmit-Saunderson model (1)
- evaluate WVI model performance with 2nd order corrections enabled (2)
- Study on effect of high energy muon scattering due to high energy
radiative processes (1)

4) Further update of ionization processes:
- review model for sampling fluctuations of e+- (1/2)
- refinement of effective ion charge approach (2) (*)
- alternative ion ionisation models for moderate energies (2) (*)

5) Bremsstrahlung and gamma models:
- incorporation of the three gamma annihilation (2)
- improved parameterisation for e+ bremsstrahlung cross section (2) (*)
- update Compton scattering model adding radiative corrections (2) (*)
- feasibility study on improved secondary generation at high energy
for e+e- pair production by e- and e+ (2) (*)

6) Evaluation of PAI and XTR models for ALICE (1)

7) High energy processes
- Evaluation or usage of Geant4 rare processes for muon backgrounds
for CLIC and R&D studies for FCC (1/2)
- extention of grid of internal table for mu-nuclear (2)

8) Optical photon physics
- Extension to the unified surface model to have both specular and
diffuse components for the transmitted photons (2)
- Modeling of optical transport in a volume that has different optical
treatments on different sides (2)