Off-shell effects in the relativistic mean field model and their role in CC (anti)neutrino scattering at MiniBooNE kinematics

Abstract

The relativistic mean field (RMF) model is used to describe nucleons in the nucleus and thereby to evaluate the effects of having dynamically off-shell spinors. Compared with free, on-shell nucleons as employed in some other models, within the RMF nucleons are described by relativistic spinors with strongly enhanced lower components. In this work it is seen that for MiniBooNE kinematics, neutrino charged-current quasielastic cross sections show some sensitivity to these off-shell effects, while for the antineutrino-nucleus case the total cross sections are seen to be essentially independent of the enhancement of the lower components. As was found to be the case when comparing the RMF results with the neutrino-nucleus data, the present impulse approximation predictions within the RMF also fall short of the MiniBooNE antineutrino-nucleus data.

19 pages, 7 figures, submitted to Physics Letters B

References in corpus (9)

• First Measurement of the Muon Neutrino Charged Current Quasielastic Double Differential Cross Section
• A study of quasi-elastic muon neutrino and antineutrino scattering in the NOMAD experiment
• Measurement of Muon Antineutrino Quasi-Elastic Scattering on a Hydrocarbon Target at E_ν ~ 3.5 GeV
• Meson-exchange currents and quasielastic neutrino cross sections in the SuperScaling Approximation model
• General study of superscaling in quasielastic $(e,e^{\prime })$ and $(\nu ,\mu )$ reactions using the relativistic impulse approximation
• Superscaling and neutral current quasielastic neutrino-nucleus scattering
• Relativistic descriptions of inclusive quasielastic electron scattering: application to scaling and superscaling ideas
• Consistent analysis of neutral- and charged-current neutrino scattering off carbon
• Neutrino and antineutrino CCQE scattering in the SuperScaling Approximation from MiniBooNE to NOMAD energies

Cited by in corpus (11)

• Extensions of Superscaling from Relativistic Mean Field Theory: the SuSAv2 Model
• Nuclear effects in electron- and neutrino-nucleus scattering within a relativistic quantum mechanical framework
• Impact of low-energy nuclear excitations on neutrino-nucleus scattering at MiniBooNE and T2K kinematics
• Charged-current inclusive neutrino cross sections in the SuperScaling model including quasielastic, pion production and meson-exchange contributions
• Neutrino energy reconstruction from semi-inclusive samples
• Quasielastic contribution to antineutrino-nucleus scattering
• Quasielastic charged-current neutrino scattering in the scaling model with relativistic effective mass
• $A$-dependence of quasielastic charged-current neutrino-nucleus cross sections
• Estimate of the theoretical uncertainty of the cross sections for nucleon knockout in neutral-current neutrino-oxygen interactions
• Neutral current quasielastic (anti)neutrino scattering beyond the Fermi gas model at MiniBooNE and BNL kinematics
• Neutral Current Neutrino-Nucleus Scattering. Theory