XXth International Conference on Neutrino Physics and Astrophysics

Poster Abstract


Monte Carlo Study of Supernova Neutrino Spectra Formation

We study the spectra formation of neutrinos in proto-neutron stars shortly after the bounce of a core collapse supernova (SN). In view of the discussion about determinig mixing parameters by measuring neutrinos from a galactic SN we put the main emphasis on mu and tau type neutrinos. In performing parameter studies with various neutron star atmospheres and neutrino interactions we find that fluxes and spectra are significantly influenced by reactions that are currently not implemented in hydrodynamic SN simulations (bremsstrahlung, nucleon recoil) and one rate that has never been seriously taken into consideration (electron neutrino pair annihilation).

Based on a paper in preparation.

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