E. Fernandez-Martinez, M. B. Gavela, J. Lopez-Pavon, O. Yasuda
Published 2007-03-08, updated 2007-06-25Version 2
A low-energy non-unitary leptonic mixing matrix is a generic effect of a large class of theories accounting for neutrino masses. It is shown how the extra CP-odd phases of a general non-unitary matrix allow for sizeable CP-asymmetries in channels other than those dominant in the standard unitary case. The $\nu_\mu\to \nu_\tau$ channel turns out to be an excellent tool to further constrain moduli and phases. Furthermore, we clarify the relationship between our approach and the so-called "non-standard neutrino interactions" schemes: the sensitivities explored here apply as well to such constructions.
Comments: 14 pages, 4 eps figures. References updated
Journal: Phys.Lett.B649:427-435,2007
Non-unitary leptonic mixing and CP-violation
CP-violation in K_{S,L}->π^{+}π^{-}γand K_{S,L}->π^{+}π^{-}e^{+}e^{-} decays
CP-Violation
