Importance of nuclear effects in the measurement of neutrino oscillation parameters

TL;DR

This paper examines how different nuclear models influence the accuracy of neutrino oscillation parameter measurements, focusing on the quasi-elastic regime relevant for future neutrino experiments.

Contribution

It provides an analysis of the impact of nuclear effects on neutrino cross section models and their influence on oscillation sensitivity forecasts.

Findings

Nuclear model assumptions significantly affect sensitivity predictions.

Quasi-elastic regime offers reduced uncertainties for measurements.

Implications for future neutrino facility designs.

Abstract

We investigate how models for neutrino-nucleus cross sections based on different assumptions for the nuclear dynamics affect the forecasted sensitivities to neutrino oscillation parameters at future neutrino facilities. We limit ourselves to the quasi-elastic regime, where the neutrino cross sections can be evaluated with less uncertainties, and discuss the sensitivity reach to theta_{13} and the CP violation phase at a prototype low-gamma beta-beam, mostly sensitive to the quasi-elastic regime.