Supernova neutrinos: fast flavor conversions near the core [CL]

Neutrino flux streaming from a supernova can undergo rapid flavor conversions almost immediately above the core. Focusing on this region, we study these fast conversions using a linear stability analysis. We find that, for realistic angular distributions of neutrinos, fast conversions can occur within a few nanoseconds in regions just above the neutrinosphere. Our results also show that neutrinos travelling towards the core make fast conversions more rapid. These conversions, if they exist, can have significant implications for supernova explosion mechanism and nucleosynthesis.

Read this paper on arXiv…

M. Sen
Thu, 23 Feb 17

Comments: Presented at the XXII DAE-BRNS HEP Symposium. Proceedings to appear in European Physics Journal C