Neutrino Mixing by modifying the Yukawa coupling structure of constrained sequential dominance

Abstract

In the constrained sequential dominance (CSD), tri-bimaximal mixing (TBM) pattern in the neutrino sector has been explained, by proposing a certain Yukawa coupling structure for the right-handed neutrinos of the model. However, from the current experimental data it is known that the values of neutrino mixing angles are deviated from the TBM values. In order to explain this neutrino mixing, we first propose a phenomenological model where we consider Yukawa couplings which are modified from that of CSD. Essentially, we add small complex parameters to the Yukawa couplings of CSD. Using these modified Yukawa couplings, we demonstrate that neutrino mixing angles can deviate from their TBM values. We also construct a model, based on a flavor symmetry, in order to justify the modified form of Yukawa couplings of our work.

arXiv comment27 pages, 1 figure; corrected our model; added 1 section, 2 appendices and references; conclusions unchanged; accepted by PRD

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Cited by in corpus (3)

• Common origin of ${\theta }_{13}$ and dark matter within the flavor symmetric scoto-seesaw framework
• Fermion mass hierarchy and lepton flavor violation using $CP$ symmetry
• Lepton and quark mixing patterns with generalized CP transformations