Analysis of flux-integrated semiexclusive cross sections for charged-current quasielastic neutrino scattering off Ar40 at energies available at the MicroBooNE experiment

A V Butkevich

doi:10.1103/physrevc.105.025501

Abstract

Flux-integrated semiexclusive differential and integral cross sections for quasielastic neutrino charged-current scattering on argon are analyzed. The cross sections are calculated using the relativistic distorted-wave impulse approximation and compare with recent MicroBooNE data. I found that the measured cross sections can be described well within the experimental uncertainties with value of the nucleon axial mass $1<{M}_{A}<1.2\phantom{\rule{0.16em}{0ex}}\mathrm{GeV}$. The contribution of the exclusive channel $({\mathbf{\ensuremath{\nu}}}_{\mathbf{\ensuremath{\mu}}},\mathbf{\ensuremath{\mu}}p)$ to the flux-integrated inclusive cross sections is about 50%.

Highlights

Current [1,2] and future [3,4] neutrino oscillation experiments use high-intensity muon-(anti)neutrino beams that are not monoenergetic and peak in the energy range from tens of MeV to a few GeV
Within the relativistic distortedwave impulse approximation (RDWIA) approach the flux-integrated CC1p0π differential and integral cross sections were calculated with MA = 1 GeV and 1.2 GeV
It was shown that the maximum of the double differential cross sections is in the range 0.9 < pμ < 1.1 GeV and 0.8 < cos θ < 0.95

Summary

Introduction

Current [1,2] and future [3,4] neutrino oscillation experiments use high-intensity muon-(anti)neutrino beams that are not monoenergetic and peak in the energy range from tens of MeV to a few GeV The goal of these experiments is to measure oscillation features in the neutrino energy spectrum reconstructed at far detectors. In the energy range εν ∼ 0.2−5 GeV charged-current (CC) quasielastic (QE) scattering and scattering induced by twobody meson exchange current (MEC), resonance production, and deep inelastic process yield the main contributions to the neutrino-nucleus interaction. The understanding of these interactions comes through cross sections measurements on various channels. The incident neutrino energy can be reconstructed using the calorimetric method, which rely on the lepton and hadron energies visible in the final state after the neutrino has interacted and on models of the neutrino-nucleus interactions that are implemented in neutrino events generators

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