Neutrino-nucleus CC0$\pi$ cross-section tuning in GENIE v3

TL;DR

This paper reviews current measurements of neutrino-induced CC0π cross sections on carbon and argon, and performs partial tuning of the GENIE v3 simulation to better model these interactions across multiple experiments.

Contribution

It introduces a partial tuning of GENIE v3 for CC0π interactions using datasets from MiniBooNE, T2K, and MINERvA, enhancing the model's consistency and understanding.

Findings

Improved description of nuclear CC0π datasets.

Data-driven uncertainties for each experiment.

Progress towards a comprehensive GENIE global tune.

Abstract

This article summarizes the state of the art of $\nu_\mu$ and $\bar{\nu}_\mu$ CC0$\pi$ cross-section measurements on carbon and argon and discusses the relevant nuclear models, parametrizations and uncertainties in GENIE v3. The CC0$\pi$ event topology is common in experiments at a few-GeV energy range. Although its main contribution comes from quasi-elastic interactions, this topology is still not well understood. The GENIE global analysis framework is exploited to analyze CC0$\pi$ datasets from MiniBooNE, T2K and MINERvA. A partial tune for each experiment is performed, providing a common base for the discussion of tensions between datasets. The results offer an improved description of nuclear CC0$\pi$ datasets as well as data-driven uncertainties for each experiment. This work is a step towards a GENIE global tune that improves our understanding of neutrino interactions on nuclei. It follows from earlier GENIE work on the analysis of neutrino scattering datasets on hydrogen and deuterium.