6533b872fe1ef96bd12d2e66

RESEARCH PRODUCT

Flavour-symmetric type-II Dirac neutrino seesaw mechanism

Eduardo PeinadoCesar BonillaJosé W. F. ValleJ. M. Lamprea

subject

PhysicsNuclear and High Energy PhysicsParticle physicsSterile neutrino010308 nuclear & particles physicsOscillationDirac (video compression format)High Energy Physics::LatticeHigh Energy Physics::PhenomenologyFOS: Physical sciences01 natural sciencesSymmetry (physics)lcsh:QC1-999High Energy Physics - PhenomenologySeesaw mechanismHigh Energy Physics - Phenomenology (hep-ph)Standard-Model Extension0103 physical sciencesHigh Energy Physics::ExperimentNeutrino010306 general physicsNeutrino oscillationlcsh:Physics

description

We propose a Standard Model extension with underlying A4 flavour symmetry where small Dirac neutrino masses arise from a Type-II seesaw mechanism. The model predicts the "golden" flavour-dependent bottom-tau mass relation, requires an inverted neutrino mass ordering and non-maximal atmospheric mixing angle. Using the latest neutrino oscillation global fit we derive restrictions on the oscillation parameters, such as a correlation between Dirac CP phase and the lightest neutrino mass.

yearjournalcountryeditionlanguage
2018-04-01Physics Letters B
10.1016/j.physletb.2018.02.022http://www.sciencedirect.com/science/article/pii/S0370269318301242