Simplified Unitarity Triangles for the Lepton Sector

Details Simplified Unitarity Triangles for the Lepton Sector Simplified Unitarity Triangles for the Lepton Sector

2005-11-16

arxiv.org/abs/hep-ph/0511201v2

Phys.Rev.D74:073012,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, including one figure. v2: corrected typos in Eqs. 1 and 11; added new references to prior, relevant work; re-ordered

Scientific paper

10.1103/PhysRevD.74.073012

Encouraged by the latest SNO results, we consider the lepton mixing matrix in the approximation that the nu_2 mass eigenstate is trimaximally (democratically) mixed. This suggests a new parameterization of the remaining mixing degrees of freedom, which eschews mixing angles, dealing instead, directly with the complex parameter U_e3 of the mixing matrix. Unitarity triangles then take a particularly simple form, which we hope will faciltate comparison with experiment.

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