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Neutrino-anti-neutrino instability in dense neutrino systems, with applications to the early universe and to supernovae

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arxiv 2206.09290 v4 pith:KSDVMUTT submitted 2022-06-18 hep-ph

classification hep-ph
keywords neutrinoclouddenseearlyexistingfastinstabilityrange
verification ladder T0 review T1 audit T2 compute T3 formal
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We exhibit a new instability that leads to "fast" coherent neutrino-antineutrino mixing in a dense neutrino cloud, arising from the standard four-Fermi interaction induced by Z exchange, and overlooked in the big existing literature on fast processes in this venue. It can play an essential role in creation of an abundance of pseudoscalar mesons of mass in the KeV range in the early universe, at temperatures in the range 10-100 MeV. Also it can overpower existing calculations in the "neutrino bulb" regions of the supernova cloud.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Collective flavor conversions are interactions of neutrinos with quantized flavor waves

    hep-ph 2025-02 conditional novelty 9.0 of 10

    Neutrino fast flavor instabilities are equivalent to stimulated emission of flavomons, quantum flavor waves, whose kinetic equations reproduce the linear growth rate and extend naturally beyond it.

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