Multiple-scattering suppression of the bremsstrahlung emission of neutrinos and axions in supernovae

Details Multiple-scattering suppression of the bremsstrahlung emission of neutrinos and axions in supernovae Multiple-scattering suppression of the bremsstrahlung emission of neutrinos and axions in supernovae

Nov 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvl..67.2605r&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 67, Nov. 4, 1991, p. 2605-2608. Research supported by DOE, Universite de Paris VI

Physics

Atomic Physics

49

Bremsstrahlung, Neutrinos, Nuclear Astrophysics, Supernovae, Quenching (Atomic Physics), Scattering, Supernova 1987A

Scientific paper

It is presently noted that the frequency of nucleon collisions in the interior of a supernova core typically exceeds the oscillation frequency of thermal neutrinos, photons, or axions. Bremsstrahlung processes must accordingly be computed on the bases of effective nucleon propagators which encompass the imaginary part of the self-energy in the denominator. The SN 1987A bounds on axion mass previously derived, as well as the bounds on other exotic particles, must be relaxed accordingly.

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