Uncertainties due to hadronic production in final-state interactions at long-baseline neutrino facility

TL;DR

This paper investigates the nuclear effects in argon versus hydrogen targets for neutrino oscillation experiments, quantifying uncertainties in final-state interactions using simulation tools to improve measurement accuracy.

Contribution

It provides a comparative analysis of nuclear effects in argon and hydrogen targets, quantifying systematic uncertainties relevant for neutrino oscillation measurements at DUNE.

Findings

Nuclear effects cause measurable uncertainties in neutrino interaction observables.

The ratio P(Ar)/P(H) varies with reconstructed neutrino energy, indicating target-dependent effects.

Simulation results help in understanding and reducing systematic errors in neutrino experiments.

Abstract

Recent neutrino oscillation experiments used high atomic number nuclear targets to attain sufficient interaction rates. The use of these complex targets introduced systematic uncertainties due to the nuclear effects in the experimental observables and need to be measured properly to pin down the discovery. Through this simulation work, we are trying to quantify the nuclear effects in the argon (Ar) target in comparison to hydrogen (H) target which are proposed to be used at Deep Underground Neutrino Experiment far detector and near detector, respectively. Generates Events for Neutrino Interaction Experiments and NuWro, two neutrino event generators, are used to construct final state kinematics. To quantify the systematic uncertainties in the observables, we present the ratio of the oscillation probability (P(Ar)/P(H)) as a function of reconstructed neutrino energy.