Coherence Effects and Neutrino Pair Bremsstrahlung in Neutron Stars
Nuclear Theory
2009-10-31 v2 Astrophysics
Abstract
We calculate the rate of energy radiation by bremsstrahlung of neutrino pairs by baryons in neutron stars employing a transport model in which neutrinos couple to baryons with spectral width. The coherence effects, which are included by computing the self energies with fully dressed propagators, lead to the Landau-Pomeranchuk-Migdal suppression of the neutrino emission rates in the soft neutrino and high temperature limit. A microscopic evaluation of the bremsstrahlung rate by neutrons is carried out using the Brueckner theory of nuclear matter at finite temperatures.
Keywords
Cite
@article{arxiv.nucl-th/9905039,
title = {Coherence Effects and Neutrino Pair Bremsstrahlung in Neutron Stars},
author = {Armen Sedrakian and Alex Dieperink},
journal= {arXiv preprint arXiv:nucl-th/9905039},
year = {2009}
}
Comments
11 pages, 2 figures, Latex, uses elsart.sty; minor changes, to appear in Phys. Lett. B