CP asymmetries from non-unitarity leptonic mixing
Abstract
A low-energy non-unitary leptonic mixing matrix is a generic effect of some theories of new physics accounting for neutrino masses. We show how the extra CP-phases of a general non-unitary matrix allow for sizeable CP-asymmetries in the μ τ channel. This CP-asymmetries turns out to be an excellent probe of such new physics.
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