Relativistic models for quasielastic electron and neutrino-nucleus scattering

TL;DR

This paper extends relativistic models for quasielastic electron scattering to neutrino-nucleus interactions, comparing different FSI descriptions and validating against experimental data.

Contribution

It introduces and compares two relativistic models for FSI in neutrino-nucleus scattering, building on previous electron scattering models.

Findings

RGF and RMF models provide consistent FSI descriptions.

Models agree with electron scattering data.

Results align with MiniBooNE neutrino cross sections.

Abstract

Relativistic models developed within the framework of the impulse approximation for quasielastic (QE) electron scattering and successfully tested in comparison with electron-scattering data have been extended to neutrino-nucleus scattering. Different descriptions of final-state interactions (FSI) in the inclusive scattering are compared. In the relativistic Green's function (RGF) model FSI are described consistently with the exclusive scattering using a complex optical potential. In the relativistic mean field (RMF) model FSI are described by the same RMF potential which gives the bound states. The results of the models are compared for electron and neutrino scattering and, for neutrino scattering, with the recently measured charged-current QE (CCQE) MiniBooNE cross sections.