Neutrino quasielastic interaction and nuclear dynamics

TL;DR

This paper analyzes neutrino-carbon quasielastic interactions, incorporating relativistic effects and multinucleon contributions, successfully explaining experimental data without modifying the axial mass, and highlighting the collective nuclear response.

Contribution

It introduces a comprehensive model including relativistic corrections and multinucleon effects, explaining MiniBooNE data without adjusting the axial mass parameter.

Findings

Data can be explained without changing the axial mass

Multinucleon component is significant in the cross sections

Evidence of collective nuclear response in the data

Abstract

We investigate the double differential neutrino-carbon quasielastic cross sections as measured by the MiniBooNE experiment. Our present treatment incorporates relativistic corrections in the nuclear response functions and includes the multinucleon component. We confirm our previous conclusion that it is possible to account for all the data without any modification of the axial mass. We also introduce the Q^2 distribution for charged and neutral current. The data point at a sizable multinucleon component beside the genuine quasielastic peak. They are also indicative of the collective character of the nuclear response, of interest for hadronic physics.