Meson-exchange currents and quasielastic neutrino cross sections in the superscaling approximation model

J.E Amaro,M.B Barbaro,J.A Caballero,T.W Donnelly,C.F Williamson

doi:10.1016/j.physletb.2010.12.007

Abstract

We evaluate the quasielastic double differential neutrino cross sections obtained in a phenomenological model based on the superscaling behavior of electron scattering data. We compare our results with the recent experimental data for neutrinos of MiniBooNE and estimate the contribution of the vector meson-exchange currents in the 2p–2h sector.

Highlights

The MIT Faculty has made this article openly available
We evaluate quasielastic double-differential antineutrino cross sections obtained in a phenomenological model based on the superscaling behavior of electron scattering data and estimate the contribution of the vector meson-exchange currents in the two-particle–two-hole sector
The cross section turns out to be substantially underestimated by the relativistic Fermi gas (RFG) model, unless an unusually large ad hoc value of the axial mass MA ’ 1:35 GeV=c2 is employed in the dipole parametrization of the nucleon axial form factor

Summary

Introduction

The MIT Faculty has made this article openly available. Please share how this access benefits you. We evaluate quasielastic double-differential antineutrino cross sections obtained in a phenomenological model based on the superscaling behavior of electron scattering data and estimate the contribution of the vector meson-exchange currents in the two-particle–two-hole sector.

Results

Conclusion