Indico v2.3 will be deployed today between 18:30 CEST (16:30 UTC) and 19:30 CEST (17:30 UTC); we expect up 10 minutes of downtime for database upgrades. Please see our blog for a list of improvements. (related SSB entry)
21-25 May 2012
New York City, NY, USA
US/Eastern timezone

Geant4 electromagnetic physics for high statistic LHC simulation

24 May 2012, 13:30
4h 45m
Rosenthal Pavilion (10th floor) (Kimmel Center)

Rosenthal Pavilion (10th floor)

Kimmel Center

Poster Event Processing (track 2) Poster Session


Francisca Garay Walls (University of Edinburgh (GB))


An overview of the current status of electromagnetic physics (EM) of the Geant4 toolkit is presented. Recent improvements are focused on the performance of large scale production for LHC and on the precision of simulation results over a wide energy range. Significant efforts have been made to improve the accuracy and CPU speed for EM particle transport. New biasing options available for Geant4 EM physics are presented. It is shown that the performance of the EM sub-package is improved. We will report extensions of the testing suite for high statistics validation of EM physics. It includes validation of multiple scattering, bremsstrahlung and other models. The precision of simulation results on the shape of EM showers is discussed in detail. It includes the validation of both high and low energy components of a shower. Cross checks between standard and low-energy EM models have been performed using evaluated data libraries and reference benchmark results.

Primary author


Alexander Bagulya (Russian Academy of Sciences (RU)) Alexander Howard (Institut fuer Teilchenphysik-Eidgenoessische Tech. Hochschule Z) Alfonso Mantero Andreas Schaelicke (University of Edinburgh (GB)) Francisca Garay Walls (University of Edinburgh (GB)) Dr Giovanni Santin (ESA) Jean Jacquemier (Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP)) John Allison (University of Manchester (GB)) Dr John Apostolakis (CERN) Laszlo Urban (Unknown) Dr Luciano Pandola (INFN-LNGS) Michel Maire (LAPP) Dr Petteri Nieminen (ESA) Mrs Sabine Elles (Centre National de la Recherche Scientifique (FR)) Sebastien Laurent Incerti (Centre National de la Recherche Scientifique (FR)) Vladimir Grichine (Russian Academy of Sciences (RU))

Presentation Materials