http://arxiv.org/abs/2209.12465
We revisit the possibility that neutrinos undergo non-radiative decay. We investigate the potential to extract information on the neutrino lifetime-to-mass ratio from the diffuse supernova neutrino background. To this aim we explicitly consider the current uncertainties on the core-collapse supernova rate and on the fraction of failed supernovae. We present predictions for the Super-Kamiokande+Gd, the JUNO, the Hyper-Kamiokande and the DUNE experiments that should observe the diffuse supernova neutrino background in the near future. We show the importance of identifying the neutrino mass ordering to break possible degeneracies between DSNB predictions in presence of decay and standard physics.
P. Ivanez-Ballesteros and M. Volpe
Tue, 27 Sep 22
76/89
Comments: 17 pages, 15 figures
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