Published May 2014 | Version v1
Journal article

Bi-large neutrino mixing with charged lepton correction

  • 1. Department of Physics, Gauhati University, Guwahati (India)

Description

Usual bi-maximal neutrino mixing faces an inherent problem in lowering the solar angle below tan2𝜃12=0.50 when charged lepton correction is considered. This minimum θ12 is achievable only if charged parity violation is absent. We start with a new model which incorporates a new idea of mixing developed recently, called bi-large mixing, similar to bi-maximal mixing except that the former chooses rather θ13 as Cabibbo angle (θc ) than zero. The bi-large mixing may be visualized in the framework of bi-trimaximal mixing which is related to a discrete flavour symmetry group Δ(96). Also the motivation comes from F-Theory inspired Grand unified theory. We apply this mixing in the neutrino sector followed by a charged lepton correction with the Cabibbo-Kobayashi-Maskawa type matrix, UeL . The model marks a prediction on θ23 to lie within the first octant. The charged-parity violating phase appearing from charged lepton sector δl12 dictates the prediction of all the three mixing angles. A proper choice of δ l12 , leads to the predictions of all the three mixing angles including θ12, to align precisely with the experimental best-fit. This close agreement thus hoists bi-large mixing as an important and promising mixing scheme, in contrast to bi-maximal or tri-bimaximal mixing as a first approximation. (author)

Additional details

Publishing Information

Journal Title
Indian Journal of Physics (Online)
Journal Volume
88
Journal Issue
5
Journal Page Range
p. 513-519
ISSN
0974-9845