Friday, May 4, 2012

1205.0766 (Bo-Qiang Ma)

Simple parametrization of neutrino mixing matrix    [PDF]

Bo-Qiang Ma
We propose two simple forms of neutrino mixing matrix along the same spirit of the Wolfenstein parametrization of quark mixing matrix. We adopt the smallest mixing angle $\theta_{13}$ as a measure of expansion parameters with the tribimaximal mixing pattern as the base matrix. The triminimal parametrization technique is utilized to expand the neutrino mixing matrix under two schemes of parametrization, i.e., the standard Chau-Keung (CK) scheme and the original Kobayashi-Maskawa (KM) scheme. The two simple forms of neutrino mixing matrix have their corresponding Wolfenstein-like parametrizations of the quark mixing matrix, and therefore they share the same intriguing features of the Wolfenstein parametrization of quark mixing matrix.
View original: http://arxiv.org/abs/1205.0766

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