München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 45: Instrumentation X and Applications

HK 45.3: Talk

Wednesday, March 20, 2019, 17:15–17:30, HS 12

Detector simulation developments in ALICE in view of LHC Runs 3 and 4 — •Benedikt Volkel for the ALICE collaboration — CERN, Switzerland — Ruprecht-Karls-Universität Heidelberg, Germany

With an expected increase of acquired data by two orders of magnitude in ALICE Runs 3 and 4, the simulation requirements will also notably increase. For the planned physics programme involving multiple analysis topics, it is estimated that the simulation requirements will increase by a factor of 20 with respect to the current production. Most of this increase is planned to be met by using fast or parametrised Monte-Carlo simulations. Simulations performed for Runs 1 and 2 employ the transport codes GEANT3, GEANT4 and FLUKA used through the Virtual Monte Carlo (VMC) interface and a common geometry modeller and navigator within the ROOT software package.

In addition to using one transport code in the event simulation, core extensions of the VMC package will be presented which allow to share the simulation of a single event among different transport codes. This provides the possibility to combine advantages of multiple transport engines depending on the simulation requirements.

Furthermore, first preliminary performance results of fast simulation implementations will be presented.