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arXiv · 1407.6631

Non-Unitary Neutrino Propagation From Neutrino Decay

Jeffrey M. Berryman·André de Gouvêa·Daniel Hernández·Roberto L. N. Oliveira
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Abstract

Neutrino propagation in space-time is not constrained to be unitary if very light states - lighter than the active neutrinos - exist into which neutrinos may decay. If this is the case, neutrino flavor-change is governed by a handful of extra mixing and "oscillation" parameters, including new sources of CP-invariance violation. We compute the transition probabilities in the two- and three-flavor scenarios and discuss the different phenomenological consequences of the new physics. These are qualitatively different from other sources of unitarity violation discussed in the literature.

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Jeffrey M. Berryman, André de Gouvêa, Daniel Hernández, Roberto L. N. Oliveira. 2015-02-12. Non-Unitary Neutrino Propagation From Neutrino Decay. https://doi.org/10.1016/j.physletb.2015.01.002

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