Bremsstrahlung neutrinos from electron-electron scattering in a relativistic degenerate electron plasma

Details Bremsstrahlung neutrinos from electron-electron scattering in a relativistic degenerate electron plasma Bremsstrahlung neutrinos from electron-electron scattering in a relativistic degenerate electron plasma

2005-08-24

arxiv.org/abs/hep-ph/0508245v1

Phys.Rev. D72 (2005) 123004

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 7 figures

Scientific paper

We present a calculation of neutrino pair bremsstrahlung due to electron-electron scattering in a relativistic degenerate plasma of electrons. Proper treatment of the in-medium photon propagator, i.e., inclusion of Debye screening of the longitudinal part and Landau damping of the transverse part, leads to a neutrino emissivity which is several orders of magnitude larger than when Debye screening is imposed for the tranverse part. Our results show that this in-medium process can compete with other sources of neutrino radiation and can, in some cases, even be the dominant neutrino emission mechanism. We also discuss the natural extension to quark-quark bremsstrahlung in gapped and ungapped quark matter.

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