Resonant neutrino spin-flavor precession and supernova shock revival
Abstract
A new mechanism of supernova shock revival is proposed, which involves resonant spin--flavor precession of neutrinos with a transition magnetic moment in the magnetic field of the supernova. The mechanism can be operative in supernovae for transition magnetic moments as small as 10-14μB provided the neutrino mass squared difference is in the range m2 (3 \; eV)2-(600 \; eV)2. It is shown that this mechanism can increase the neutrino--induced shock reheating energy by about 60\%.
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