9–13 May 2022
CERN
Europe/Zurich timezone

Particle-based Fast Jet Simulation at the LHC with Variational Autoencoders

10 May 2022, 16:05
15m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
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Short talk Workshop

Speaker

Breno Orzari (UNESP - Universidade Estadual Paulista (BR))

Description

At the LHC, the full-simulation workflow requires a large fraction of the computing resources available for experiments. With the planned High Luminosity upgrade of the LHC, the amount of needed simulated datasets would even increase. Speeding up the simulation workflow is of crucial importance for the success of the HL-LHC program and Deep Learning is considered as a promising approach to achieve this goal. In this study, we employ Deep Variational Autoencoders to train a fast simulation of jets of particles at the LHC. Starting from a generator-level view of a jet, we train a variational autoencoder to model the detector response and get the corresponding jet at reconstruction-level bypassing the time-consuming detector simulation and reconstruction steps. This approach achieves inference time comparable to that of a rule-based fast simulation and an accurate description of the momenta of the jet and its constituents.

Primary authors

Mary Touranakou (National and Kapodistrian University of Athens (GR)) Nadya Chernyavskaya (CERN) Javier Mauricio Duarte (Univ. of California San Diego (US)) Prof. Dimitrios Gunopulos (National and Kapodistrian University of Athens) Raghav Kansal (Univ. of California San Diego (US)) Breno Orzari (UNESP - Universidade Estadual Paulista (BR)) Maurizio Pierini (CERN) Thiago Tomei Fernandez (UNESP - Universidade Estadual Paulista (BR)) Jean-Roch Vlimant (California Institute of Technology (US))

Presentation materials