Simplified Unitarity Triangles for the Lepton Sector
High Energy Physics - Phenomenology
2011-09-29 v2
Abstract
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.
Cite
@article{arxiv.hep-ph/0511201,
title = {Simplified Unitarity Triangles for the Lepton Sector},
author = {James D. Bjorken and P. F. Harrison and W. G. Scott},
journal= {arXiv preprint arXiv:hep-ph/0511201},
year = {2011}
}
Comments
4 pages, including one figure. v2: corrected typos in Eqs. 1 and 11; added new references to prior, relevant work; re-ordered some references; made 3 minor wording changes