Quasi-elastic scattering, RPA, 2p2h and neutrino--energy reconstruction

TL;DR

This paper investigates nuclear effects like RPA correlations and 2p2h mechanisms in neutrino-nucleus reactions without pion production, analyzing their impact across a broad energy spectrum and on neutrino energy reconstruction.

Contribution

It provides a comprehensive analysis of nuclear effects and their influence on neutrino energy reconstruction in charged-current interactions without pion production.

Findings

Nuclear effects significantly affect neutrino interaction modeling.

2p2h mechanisms alter neutrino energy reconstruction accuracy.

Study covers neutrino energies from hundreds of MeV to 10 GeV.

Abstract

We discuss some nuclear effects, RPA correlations and 2p2h (multinucleon) mechanisms, on charged-current neutrino-nucleus reactions that do not produce a pion in the final state. We study a wide range of neutrino energies, from few hundreds of MeV up to 10 GeV. We also examine the influence of 2p2h mechanisms on the neutrino energy reconstruction.