Low-Energy Inelastic Neutrino Reactions on 4He

Abstract

The inelastic scattering of neutrino off 4He is calculated microscopically at energies typical for core collapse supernova environment. The calculation is carried out with the Argonne V18 nucleon--nucleon potential and the Urbana IX three nucleon force. Full final state interaction is included via the Lorentz integral transform (LIT) method. The contribution of axial meson exchange currents to the cross sections is taken into account from effective field theory of nucleons and pions to order O(Q^3).

arXiv comment5 pages, 1 figure, corrected typos and added reference, submitted to Phys. Rev. Lett

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