Quasielastic neutrino scattering from oxygen and the atmospheric neutrino problem

Details Quasielastic neutrino scattering from oxygen and the atmospheric neutrino problem Quasielastic neutrino scattering from oxygen and the atmospheric neutrino problem

1993-04-22

arxiv.org/abs/nucl-th/9304017v1

Phys.Rev.D48:3048-3054,1993

Physics

Nuclear Physics

Nuclear Theory

In Revtex version 2. 14 pages, 3 figures (available on request from J. Engel, tel. 302-831-4354, jon@bartol.udel.edu)

Scientific paper

10.1103/PhysRevD.48.3048

We examine several phenomena beyond the scope of Fermi-gas models that affect the quasielastic scattering (from oxygen) of neutrinos in the 0.1 -- 3.0 GeV range. These include Coulomb interactions of outgoing protons and leptons, a realistic finite-volume mean field, and the residual nucleon-nucleon interaction. None of these effects are accurately represented in the Monte Carlo simulations used to predict event rates due to $\mu$ and $e$ neutrinos from cosmic-ray collisions in the atmosphere. We nevertheless conclude that the neglected physics cannot account for the anomalous $\mu$ to $e$ ratio observed at Kamiokande and IMB, and is unlikely to change absolute event rates by more than 10--15\%. We briefly mention other phenomena, still to be investigated in detail, that may produce larger changes.

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