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arxiv: 0903.3986 · v1 · submitted 2009-03-24 · ✦ hep-ph

Probing non-unitary mixing and CP-violation at a Neutrino Factory

classification ✦ hep-ph
keywords mixingleptonicmatrixneutrinonon-unitaryparameterscp-violationfactory
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A low energy non-unitary leptonic mixing matrix is a generic feature of many extensions of the Standard Model. In such a case, the task of future precision neutrino oscillation experiments is more ambitious than measuring the three mixing angles and the leptonic (Dirac) CP-phase, i.e., the accessible parameters of a unitary leptonic mixing matrix. A non-unitary mixing matrix has 13 parameters that affect neutrino oscillations, out of which four are CP-violating. In the scheme of Minimal Unitarity Violation (MUV) we analyse the potential of a Neutrino Factory for determining or constraining the parameters of the non-unitary leptonic mixing matrix, thereby testing the origin of CP-violation in the lepton sector.

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