Wuppertal 2015 – scientific programme

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T: Fachverband Teilchenphysik

T 41: Detektoren und DAQ 1

T 41.2: Talk

Tuesday, March 10, 2015, 17:00–17:15, G.10.07 (HS 5)

Simulation of dynamic pile-up corrections in the ATLAS level-1 calorimeter trigger — •Daniel Narrias-Villar, Martin Wessels, and Oleg Brandt — Heidelberg University, Heidelberg, Germany

The Level-1 Calorimeter Trigger is a crucial part of the ATLAS trigger effort to select only relevant physics events out of the large number of interactions at the LHC. In Run II, in which the LHC will double the centre-of-mass energy and further increase the instantaneous luminosity, pile-up is a limiting key factor for triggering and reconstruction of relevant events. The upgraded L1Calo Multi-Chip-Modules (nMCM) will address this problem by applying dynamic pile-up corrections in real-time, of which a precise simulation is crucial for physics analysis. Therefore pile-up effects are studied in order to provide a predictable parametrised baseline correction for the Monte Carlo simulation. Physics validation plots, such as trigger rates and turn-on curves are laid out.