Non-unitary leptonic mixing and CP-violation

Details Non-unitary leptonic mixing and CP-violation Non-unitary leptonic mixing and CP-violation

2007-11-07

arxiv.org/abs/0711.1049v1

AIPConf.Proc.981:219-221,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 eps figures, based on talk given at NuFact07, Okayama, Japan, 6-11 August 2007; prepared using LaTeX package for pu

Scientific paper

10.1063/1.2898939

Some theories of new physics accounting for neutrino masses can give rise to a low-energy non-unitary leptonic mixing matrix. It is shown that the CP-asymmetries in the $\nu_\mu\to \nu_\tau$ channel are an excellent probe of such new physics. In adition, we clarify the relationship betweeen our framework and the so called "non-standard neutrino interactions" scenarios: the sensitivities explored here apply as well to such constructions, except for extremely fine-tuned cancellations.

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