First Measurement of the Muon Neutrino Charged Current Quasielastic Double Differential Cross Section

TL;DR

This paper reports the first measurement of the double differential cross section for muon neutrino charged-current quasielastic scattering on carbon, providing detailed data to improve neutrino interaction models and aid oscillation experiments.

Contribution

It presents the first high-statistics measurement of the double differential cross section for CCQE on carbon with minimal model dependence.

Findings

First measurement of the double differential cross section for CCQE on carbon.

Provides the absolute cross section as a function of neutrino energy.

Offers data to refine nucleon axial-vector form factors and nuclear interaction models.

Abstract

A high-statistics sample of charged-current muon neutrino scattering events collected with the MiniBooNE experiment is analyzed to extract the first measurement of the double differential cross section ($\frac{d^2\sigma}{dT_\mu d\cos\theta_\mu}$) for charged-current quasielastic (CCQE) scattering on carbon. This result features minimal model dependence and provides the most complete information on this process to date. With the assumption of CCQE scattering, the absolute cross section as a function of neutrino energy ($\sigma[E_\nu]$) and the single differential cross section ($\frac{d\sigma}{dQ^2}$) are extracted to facilitate comparison with previous measurements. These quantities may be used to characterize an effective axial-vector form factor of the nucleon and to improve the modeling of low-energy neutrino interactions on nuclear targets. The results are relevant for experiments searching for neutrino oscillations.