Quasielastic Lepton-Nucleus Scattering and the Correlated Fermi Gas Model

TL;DR

This paper introduces an analytic implementation of the Correlated Fermi Gas Model to improve understanding of neutrino-nucleus interactions, crucial for reducing uncertainties in neutrino research.

Contribution

It provides a fully analytic version of the Correlated Fermi Gas Model for electron and neutrino scattering, enabling detailed comparison of nuclear and nucleon effects.

Findings

Comparison of form factors and nuclear effects on electron-carbon scattering

Analysis of nuclear model impacts on neutrino-carbon scattering

Enhanced understanding of interaction uncertainties in neutrino experiments

Abstract

The neutrino research program in the coming decades will require improved precision. A major source of uncertainty is the interaction of neutrinos with nuclei that serve as targets for such experiments. Broadly speaking, this interaction often depends, e.g., for charge-current quasi-elastic scattering, on the combination of ``nucleon physics", expressed by form factors, and ``nuclear physics", expressed by a nuclear model. It is important to get a good handle on both. We present a fully analytic implementation of the Correlated Fermi Gas Model for electron-nucleus and charge-current quasi-elastic neutrino-nucleus scattering. The implementation is used to compare separately form factors and nuclear model effects for both electron-carbon and neutrino-carbon scattering data.