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 ${\nu }_{\mu }\to {\nu }_{\tau }$ channel. This CP-asymmetries turns out to be an excellent probe of such new physics.

4 pages, 2 figures, based on talk given at XLIIIrd Rencontres de MORIOND Electroweak Session, La Thuile, March 1-8, 2008

References in corpus (2)

• Low energy effects of neutrino masses
• CP-violation from non-unitary leptonic mixing