Visible Neutrino Decays and the Impact of the Daughter-Neutrino Mass

Abstract

We compute the differential decay width of two- and three-body neutrino decays, assuming neutrinos are Dirac fermions and allowing for the possibility that the decay-daughters have nonzero masses. We examine different hypotheses for the interaction that mediates neutrino decay and concentrate on identifying circumstances where the decay-daughters can significantly impact the neutrino-decay signature at different experiments. We are especially interested in decay daughters produced by right-chiral neutrino fields, when the mass of the daughter plays a decisive role. As a concrete example, we compare the effects of visible and invisible antineutrino decays at the JUNO experimental setup.

23 pages, 14 figures, matches published version

References in corpus (10)

• Status of Oscillation plus Decay of Atmospheric and Long-Baseline Neutrinos
• Neutrino Decays over Cosmological Distances and the Implications for Neutrino Telescopes
• Relaxing Cosmological Neutrino Mass Bounds with Unstable Neutrinos
• Constraints on neutrino decay lifetime using long-baseline charged and neutral current data
• Testing neutrino flavor mixing plus decay with neutrino telescopes
• Revisiting cosmological bounds on radiative neutrino lifetime
• Visible Decay of Astrophysical Neutrinos at IceCube
• On the Impact of Neutrino Decays on the Supernova Neutronization-Burst Flux
• Constraining visible neutrino decay at KamLAND and JUNO
• Unstable Cosmic Neutrino Capture