Dortmund 2021 – scientific programme
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T: Fachverband Teilchenphysik
T 40: Experimental methods II
T 40.2: Talk
Tuesday, March 16, 2021, 16:15–16:30, To
Status and outlook of the CMS fast Monte Carlo simulation chain (FastSim) — •Samuel Bein — Universitaet Hamburg, Hamburg, Germany
The High Luminosity LHC is expected to deliver a total integrated luminosity of 3 fb−1 to the CMS detector by the end of the next decade, a data set roughly 30 times larger than that obtained before the current date. This significant ramp up will enhance the importance of fast Monte Carlo simulation programs, both to satisfy computing budget requirements, and to provide analysis teams with accurate simulated event samples in a timely manner. The CMS experiment plans to develop its existing fast simulation program (FastSim), a factor of 10 faster than the Geant4-based full simulation, in order to fulfill a larger fraction of the collaboration’s needs. The current performance of FastSim is highlighted, and the status of various developments, including the use of generative models to improve the accuracy of high-level physics observables, is discussed.