Reconstructing the Kinematics of Deep Inelastic Scattering with Deep Learning

4 May 2022, 17:10
20m
Parallel talk WG1: Structure Functions and Parton Densities WG1: Structure Functions and Parton Densities

Speakers

Ben Nachman (Lawrence Berkeley National Lab. (US)) Daniel Britzger (Max-Planck-Institut für Physik München) Miguel Ignacio Arratia Munoz (Lawrence Berkeley National Lab. (US)) Owen Long (University of California Riverside (US))

Description

We present a novel method to reconstruct the kinematics of neutral-current deep inelastic scattering (DIS) using a deep neural network (DNN). Unlike traditional methods, it exploits the full kinematic information of both the scattered electron and the hadronic-final state, and it accounts for QED radiation by identifying events with radiated photons and event-level momentum imbalance. The method is studied with simulated events at HERA and the future Electron-Ion Collider (EIC). We will show that the DNN method outperforms all the traditional methods over the full phase space, improving resolution and reducing bias. The DNN-based reconstruction has the potential to extend the kinematic reach of future experiments at the EIC, and thus their discovery potential in polarized and nuclear DIS.

Submitted on behalf of a Collaboration? No

Authors

Ben Nachman (Lawrence Berkeley National Lab. (US)) Daniel Britzger (Max-Planck-Institut für Physik München) Miguel Ignacio Arratia Munoz (Lawrence Berkeley National Lab. (US)) Owen Long (University of California Riverside (US))

Presentation materials