# Nuclear Transparency in Monte Carlo Neutrino Event Generators

## TL;DR

This paper demonstrates that a modified hadron cascade model in Monte Carlo neutrino event generators can accurately reproduce nuclear transparency data and improve understanding of final state interactions in neutrino-nucleus experiments.

## Contribution

It introduces physically motivated modifications to the nucleon-nucleon cross section and nuclear correlation effects in the cascade model, enhancing its predictive power.

## Key findings

- Model reproduces experimental nuclear transparency data
- Uncertainty estimates improve neutrino-nucleus cross section analysis
- Insights into event identification from two-body current mechanisms

## Abstract

Hadron cascade model is an essential part of Monte Carlo neutrino event generators that governs final state interactions of knocked-out nucleons and produced pions. It is shown that such model enriched with physically motivated modifications of nucleon-nucleon cross section and incorporation of nuclear correlation effects is able to reproduce experimental nuclear transparency data. Uncertainty of nucleon final state interactions effects is estimated and applied to recent neutrino-nucleus cross section measurements that include an outgoing proton in the experimental signal. Conclusions are drawn on a perspective of identification of events that originate from two-body current mechanism.