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arXiv · 2005.14204

Fast flavor conversions in supernovae: the rise of mu-tau neutrinos

Francesco Capozzi·Madhurima Chakraborty·Sovan Chakraborty·Manibrata Sen
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Abstract

Neutrinos in a core-collapse supernova can undergo fast flavor conversions with a possible impact on the explosion mechanism and nucleosynthesis. We perform the first non-linear simulations of fast conversions in the presence of three neutrino flavors. The recent supernova simulations with muon production call for such an analysis, as they relax the standard $\nu_{\mu,\tau}=\bar{\nu}_{\mu,\tau}$ (two-flavor) assumption. Our results show the significance of muon and tau lepton number angular distributions, together with the traditional electron lepton number ones. Indeed, our three-flavor results are potentially very different from two-flavor ones. These results strengthen the need to further investigate the occurrence of fast conversions in supernova simulation data, including the degeneracy breaking of mu and tau neutrinos.

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Francesco Capozzi, Madhurima Chakraborty, Sovan Chakraborty, Manibrata Sen. 2020-05-28. Fast flavor conversions in supernovae: the rise of mu-tau neutrinos. https://doi.org/10.1103/physrevlett.125.251801

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