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A dynamical collective calculation of supernova neutrino signals

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arxiv 0902.0317 v2 pith:H7JGN5CC submitted 2009-02-02 hep-ph astro-ph.SRnucl-th

A dynamical collective calculation of supernova neutrino signals

classification hep-ph astro-ph.SRnucl-th
keywords neutrinocollectivedetectorseffectspositronssignalsupernovaangle
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present the first calculations with three flavors of collective and shock wave effects for neutrino propagation in core-collapse supernovae using hydroynamical density profiles and the S matrix formalism. We explore the interplay between the neutrino-neutrino interaction and the effects of multiple resonances upon the time signal of positrons in supernova observatories. A specific signature is found for the inverted hierarchy and a large third neutrino mixing angle and we predict, in this case, a dearth of lower energy positrons in Cherenkov detectors midway through the neutrino signal and the simultaneous revelation of valuable information about the original fluxes. We show that this feature is also observable with current generation neutrino detectors at the level of several sigmas.

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Cited by 1 Pith paper

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  1. Study of Supernova Neutrinos at ESSnuSB

    hep-ex 2026-06 unverdicted novelty 3.0

    ESSnuSB far detector shows varying event rates across supernova models and potential to distinguish them depending on distance, systematics, and efficiency.