November 30, 2020 to December 3, 2020
Southern Methodist University
America/Chicago timezone

Adversarial mixture density network for particle reconstruction: a case study in collider simulation

Dec 1, 2020, 2:36 PM
6m
Southern Methodist University

Southern Methodist University

Talk

Speaker

Kin Ho Lo (University of Florida (US))

Description

An adversarial mixture density network (AMDN) with gaussian kernels is used to simulate muon reconstruction in the setup of collider detectors. The network is trained on events generated using Madgraph5, Pythia8 and the Delphes3 fast detector simulation implementation for the Compact Muon Solenoid (CMS). It is observed that the network can reproduce relevant kinematic distributions with a very good level of agreement, and at the same time the underlying correlations between reconstructed variables. Without prior collider-specific constraints,the trained network also acquires the azimuthal symmetry, a key feature in CMS simulation. While popular generative models, such as generataive adversarial networks (GANs), demonstrates wide success in various research areas, our work demonstrates that an alternative algorithmic approach more specific to Monte Carlo simulation in collider physics can be favourable and help tackle the increasing computing demands from simulation in collider experiments.

Primary author

Kin Ho Lo (University of Florida (US))

Presentation materials