Effects of $e^- e^+ ν_e$ Decays of Tau Neutrinos Near A Supernova

Details Effects of $e^- e^+ ν_e$ Decays of Tau Neutrinos Near A Supernova Effects of $e^- e^+ ν_e$ Decays of Tau Neutrinos Near A Supernova

1993-10-12

arxiv.org/abs/hep-ph/9310273v1

Phys.Rev. D49 (1994) 3434-3440

Physics

High Energy Physics

High Energy Physics - Phenomenology

29 Pages, Tex file, UMDHEP 94-42

Scientific paper

10.1103/PhysRevD.49.3434

We revisit the constraints implied by SN 1987 A observations on the decay rate of a multi-MeV $\nu_\tau$ decaying into the visible channel $\nu_\tau \rightarrow e^+ e^- \nu_e$, if its lifetime is more than 10 {\it sec.}. We discuss its implication for the minimal left-right symmetric model with see-saw mechanism for neutrino masses. We also speculate on the possible formation of a ``giant Capacitor" in intergalactic space due to the decay of "neutronization" $\nu_\tau$'s and spin allignment possibility in the supernova.

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