6533b82bfe1ef96bd128d7c5
RESEARCH PRODUCT
Bilarge neutrino mixing and Abelian flavor symmetry
S. MorisiJosé W. F. ValleGui-jun Dingsubject
PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsYukawa texturesRelatively large theta(13)High Energy Physics::PhenomenologyFamily symmetryFísicaFOS: Physical sciences01 natural sciencesHigh Energy Physics - PhenomenologyCP violationHigh Energy Physics - Phenomenology (hep-ph)Nonzero theta (13)0103 physical sciencesLepton mass matricesFermion massesQuark massesAbelian groupNeutrino010306 general physicsHumanitiesMixing (physics)description
We explore two bilarge neutrino mixing Anzatze within the context of Abelian flavor symmetry theories: (BL1) sin theta(12) similar to lambda, sin theta(13) similar to lambda, sin theta(23) similar to lambda, and (BL2) sin theta(12) similar to lambda, sin theta(13) similar to lambda, sin theta(23) similar to 1 - lambda. The first pattern is proposed by two of us and is favored if the atmospheric mixing angle theta(23) lies in the first octant, while the second one is preferred for the second octant of theta(23). In order to reproduce the second texture, we find that the flavor symmetry should be U(1) x Z(m), while for the first pattern the flavor symmetry should be extended to U(1) x Z(m) x Z(n) with m and n of different parity. Explicit models for both mixing patterns are constructed based on the flavor symmetries U(1) x Z(3) x Z(4) and U(1) x Z(2). The models are extended to the quark sector within the framework of SU(5) grand unified theory in order to give a successful description of quark and lepton masses and mixing simultaneously. Phenomenological implications are discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-11-27 | Physical Review D |