Neutrino scattering by nuclei in imperfect media

Details Neutrino scattering by nuclei in imperfect media Neutrino scattering by nuclei in imperfect media

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esasp.311..305l&link_type=abstract

In ESA, Plasma Astrophysics p 305-307 (SEE N91-15046 06-90)

Astronomy and Astrophysics

Astrophysics

Magnetic Moments, Neutrinos, Nuclear Scattering, Opacity, Collapse, Neutron Emission, Phonons, Radiation Absorption, Stellar Cores, Stellar Structure

Scientific paper

Quasi elastic neutrino scattering by nuclei in the matter and neutrino helicity flip via the scattering by nuclei is investigated. At the neutrino opacity stage the nuclear component of a collapsing star core is highly imperfect. In this case a neutrino scattering by nuclei is reduced to emission and absorption of phonons in the medium. Therefore the cross section of neutrino scattering by nucleus in the collapsing matter is much less than the cross section of the scattering by an isolated nucleus. It may be important for a neutrino opacity approach in the collapsing star core and for correct upper bound evaluation of a neutrino magnetic moment.

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