A Hadronization Model for Few-GeV Neutrino Interactions

TL;DR

This paper introduces a new hadronization model tailored for few-GeV neutrino interactions, emphasizing the low invariant mass region relevant to neutrino oscillation experiments, and demonstrates its agreement with experimental data.

Contribution

A novel hadronization model specifically designed for low invariant mass neutrino interactions, improving simulation accuracy in the few-GeV energy range.

Findings

Model shows reasonable agreement with experimental data

Applicable across a wide invariant mass range starting from pion production threshold

Provides guidance for future measurements to reduce uncertainties

Abstract

We present a detailed description of a new hadronic multiparticle production model for use in neutrino interaction simulations. Its validity spans a wide invariant mass range starting from pion production threshold. This model focuses on the low invariant mass region which is probed in few-GeV neutrino interactions and is of particular importance to neutrino oscillation experiments using accelerator and atmospheric fluxes. It exhibits reasonable agreement with a wide variety of experimental data. We also describe measurements that can be made in upcoming experiments that can improve modeling in areas where uncertainties are currently large.