The SuSA model for neutrino oscillation experiments: from quasielastic scattering to the resonance region

TL;DR

This paper introduces the SuSA model for neutrino-nucleus interactions, covering a broad energy range from quasielastic scattering to resonance excitation, with applications to current and future neutrino experiments.

Contribution

The paper develops a relativistic nuclear model incorporating one- and two-body currents for accurate neutrino cross section predictions across multiple energy regimes.

Findings

Model agrees well with T2K and MicroBooNE data

Provides predictions for DUNE experiment

Includes detailed treatment of resonances and two-particle-two-hole excitations

Abstract

High precision studies of Beyond-Standard-Model physics through accelerator-based neutrino oscillation experiments require a very accurate description of neutrino-nucleus cross sections in a broad energy region, going from quasielastic scattering up to deep inelastic scattering. In this work we focus on the following processes: quasielastic scattering, two-particle-two-hole excitations, and the excitation of the first (Delta) and second (Roper) resonances of the nucleon. The nuclear model is fully relativistic and includes both one- and two-body currents. We compare our results with recent T2K and MicroBooNE data on carbon and argon targets, and present predictions for DUNE kinematics.