25-29 November 2013
Hotel Victoria
Mexico/General timezone
Contribution
Invisible decays of ultra-high energy neutrinos
Abstract content
Gamma-ray bursts (GRBs) are expected to provide a source of ultra high
energy cosmic rays, accompanied with potentially detectable neutrinos
at neutrino telescopes. Recently, IceCube has set an upper bound on
this neutrino flux well below theoretical expectation. We investigate
whether this mismatch between expectation and observation can be due
to neutrino decay. We demonstrate the phenomenological consistency and
theoretical plausibility of the neutrino decay
hypothesis. A potential implication is the observability of
majoron-emitting neutrino-less double beta decay.