Electron-nucleus scattering in the NEUT event generator

TL;DR

This paper discusses the extension of the NEUT event generator to simulate electron-nucleus scattering, compares it with experimental data, and introduces empirical corrections to improve its nuclear removal energy modeling.

Contribution

The paper presents an expansion of NEUT to include electron scattering simulations and derives empirical corrections based on experimental comparisons.

Findings

NEUT now simulates electron-nucleus scattering.

Discrepancies identified lead to empirical correction methods.

Improved agreement with experimental measurements.

Abstract

The NEUT event generator is a widely-used tool to simulate neutrino interactions for energies between 10s of MeV and a few TeV. NEUT plays a crucial role in neutrino oscillation analyses for the T2K and Hyper-K experiments, providing the primary simulation of the neutrino interactions whose final-state products are measured to infer the oscillation parameters. NEUT is also capable of simulating nucleon decay and hadron scattering. These proceedings present an expansion of NEUT to simulate electron scattering before showing comparisons to experimental measurements and using discrepancies to derive an empirical correction to NEUT's treatment of nuclear removal energy.