title: Meson-exchange currents and quasielastic antineutrino cross sections in the superscaling approximation.
abstract: 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. We show that the impact of meson-exchange currents for charge-changing antineutrino reactions is much larger than in the neutrino case.
authors.affiliation: Departamento de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teorica y Computacional, Universidad de Granada, 18071 Granada, Spain.
authors.forename: J E
authors.initials: JE
authors.lastname: Amaro
authors.forename: M B
authors.initials: MB
authors.lastname: Barbaro
authors.forename: J A
authors.initials: JA
authors.lastname: Caballero
authors.forename: T W
authors.initials: TW
authors.lastname: Donnelly