Bi-large neutrino mixing with charged lepton correction
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
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 51121997
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- GRAND UNIFIED THEORY; LEPTONS; NEUTRINO MIXING ANGLE; NEUTRINO OSCILLATION; PARITY; QUANTUM CHROMODYNAMICS; QUANTUM NUMBERS
- Descriptors DEC
- ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; MATHEMATICAL MODELS; MIXING ANGLE; PARTICLE MODELS; PARTICLE PROPERTIES; QUANTUM FIELD THEORY; UNIFIED GAUGE MODELS