Neutrino Trapping in a Supernova and Ion Screening

C. J. Horowitz (Indiana University; Univ. of Bonn)

Neutrino Trapping in a Supernova and Ion Screening

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arxiv astro-ph/9603138 v1 pith:OWBXR76D submitted 1996-03-27 astro-ph hep-phnucl-th

Neutrino Trapping in a Supernova and Ion Screening

C. J. Horowitz (Indiana University , Univ. of Bonn) This is my paper

classification astro-ph hep-phnucl-th

keywords ionsneutrinosupernovatrappingbecausecalculatedcarlocoherent

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Neutrino-nucleus elastic scattering is reduced in dense matter because of correlations between ions. The static structure factor for a plasma of electrons and ions is calculated from Monte Carlo simulations and parameterized with a least squares fit. Our results imply a large increase in the neutrino mean free path. This strongly limits the trapping of neutrinos in a supernova by coherent neutral current interactions.

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