Neutrino energy reconstruction in long-baseline experiments

TL;DR

This paper compares two neutrino energy reconstruction methods in long-baseline experiments, analyzing detector capabilities to ensure precise measurement of oscillation parameters.

Contribution

It provides a comparative analysis of kinematic and calorimetric energy reconstruction techniques considering realistic detector effects.

Findings

Kinematic and calorimetric methods have different sensitivities to detector resolutions.

Proper calibration of detector efficiencies is crucial for unbiased neutrino energy estimation.

Energy resolution impacts the precision of neutrino oscillation parameter measurements.

Abstract

Modern experiments aimed at measuring neutrino oscillation parameters have entered the age of precision. The determination of these parameters strongly depends on the ability to reconstruct the energy distributions of the neutrino beams. We compare two different energy reconstruction techniques: the reconstruction based on the kinematic of the outgoing lepton and the one based on the calorimetric method. Furthermore, we analyze realistic detector capabilities, such as energy resolutions, thresholds and efficiencies, in order to estimate how well they need to be evaluated to avoid a significant bias in the extraction of the oscillation parameters.