A Bayesian forecast of upcoming DSNB detectors shows neutrino decay can be distinguished from stability for quasi-degenerate or inverted mass patterns, but not for strong normal hierarchy.
New Insights into Uncertainties in the Relic Neutrino Background and Effects from the Nuclear Equation of State
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We review the computation of and associated uncertainties in the current understanding of the relic neutrino background due to core-collapse supernovae, black hole formation and neutron-star merger events. We consider the current status of uncertainties due to the nuclear equation of state (EoS), the progenitor masses, the source supernova neutrino spectrum, the cosmological star formation rate, the stellar initial mass function, neutrino oscillations, and neutrino self-interactions. We summarize the current viability of future neutrino detectors to distinguish the nuclear EoS and the temperature of supernova neutrinos via the detected relic supernova neutrino spectrum.
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Diffuse Supernova Neutrino Background and Neutrino Non-Radiative Decay: a Bayesian Perspective
A Bayesian forecast of upcoming DSNB detectors shows neutrino decay can be distinguished from stability for quasi-degenerate or inverted mass patterns, but not for strong normal hierarchy.