Neutrino pair bremsstrahlung including neutral current effects
نویسندگان
چکیده
منابع مشابه
Neutrino pair bremsstrahlung in neutron star crusts: A reappraisal.
We demonstrate that band-structure effects suppress bremsstrahlung of neutrino pairs by electrons in the crusts of neutron stars at temperatures of the order of 5×109K and below. Taking this into account, together with the fact that recent work indicates that the masses of neutron star crusts are considerably smaller than previously estimated, we find neutrino pair bremsstrahlung to be much les...
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Neutrino-pair bremsstrahlung by relativistic degenerate electrons in a neutron-star crust at densities 10 9 g cm ?3 < < 1:5 10 14 g cm ?3 is analyzed. The processes taken into account are neutrino emission due to Coulomb scattering of electrons by atomic nuclei in a Coulomb liquid, and electron-phonon scattering (the phonon contribution) and Bragg diiraction (the static-lattice contribution) in...
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We calculate the rate of energy emission by bremsstrahlung of neutrino pairs by electrons moving in the crystalline lattice of ions in dense matter in the crust of a neutron star. Since the periodic potential in the solid gives rise to electronic band gaps which can be as large as about 1 MeV, it is necessary in estimating the bremsstrahlung rate at low temperatures to take into account band st...
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We study the neutral-current neutrino scattering for four nuclei in the iron region. We evaluate the cross sections for the relevant temperatures during the supernova core collapse and derive Gamow-Teller distributions from large-scale shell-model calculations. We show that the thermal population of the excited states significantly enhances the cross sections at low neutrino energies. Calculati...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 1976
ISSN: 0004-637X,1538-4357
DOI: 10.1086/154851