Meson-exchange currents and quasielastic predictions for charged-current neutrino-C12scattering in the superscaling approach

G. D. Megias, T. W. Donnelly, O. Moreno, C. F. Williamson, J. A. Caballero, R. González-Jiménez, A. De Pace, M. B. Barbaro, W. M. Alberico, M. Nardi, J. E. Amaro
2015 Physical Review D  
We evaluate and discuss the impact of meson-exchange currents (MECs) on charged-current quasielastic neutrino cross sections. We consider the nuclear transverse response arising from two-particle two-hole states excited by the action of electromagnetic, purely isovector meson-exchange currents in a fully relativistic framework based on the work by the Torino Collaboration [A. D. Pace, M. Nardi, W. M. Alberico, T. W. Donnelly, and A. Molinari, Nucl. Phys. A726, 303 (2003)]. An accurate
more » ... accurate parametrization of this MEC response as a function of the momentum and energy transfers involved is presented. Results of neutrino-nucleus cross sections using this MEC parametrization together with a recent scaling approach for the one-particle one-hole contributions (named SuSAv2) are compared with experimental data (MiniBooNE, MINERvA, NOMAD and T2K Collaborations).
doi:10.1103/physrevd.91.073004 fatcat:irpvcinisbblxd2g5pa53gsobi