Weak Interactions in Supernova Cores and Saturation of Nucleon Spin Fluctuations

Details Weak Interactions in Supernova Cores and Saturation of Nucleon Spin Fluctuations Weak Interactions in Supernova Cores and Saturation of Nucleon Spin Fluctuations

1995-08-09

arxiv.org/abs/astro-ph/9508046v1

Phys.Rev.Lett.76:2625-2628,1996

Astronomy and Astrophysics

Astrophysics

9 latex pages, 1 uuencoded postscript figure added via figures command

Scientific paper

10.1103/PhysRevLett.76.2625

Extrapolation of perturbative nucleon spin fluctuation rates seems to suggest a strong suppression of weak interactions in supernova cores. We derive a new sum rule for the dynamical spin-density structure function which relates the spin fluctuation rate to the average nuclear interaction energy. For a bremsstrahlung like structure function profile we show that instead of strongly decreasing, the neutrino scattering cross section is roughly density independent and axion emission rates increase somewhat slower than the lowest order emissivities towards the center of a hot supernova core.

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