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 2p-2h sector. We show that the impact of meson-exchange currents for charge-changing antineutrino reactions is much larger than in the neutrino case.

4 pages, 4 figures

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