Textures of Yukawa coupling matrices in the 2HDM type III

We propose a predictive model based on the S U(3) C ⊗S U(3) L ⊗U(1) X gauge group supplemented by the A 4 ⊗Z 3 ⊗Z 4 ⊗Z 6 ⊗Z 16 discrete group, which successfully describes the SM fermion mass and mixing pattern. The small active neutrino masses are generated via inverse seesaw mechanism with three very light Majorana neutrinos. The observed charged fermion mass hierarchy and quark mixing pattern are originated from the breaking of the Z 4 ⊗ Z 6 ⊗ Z 16 discrete group at very high scale. The obtained values for the physical observables for both quark and lepton sectors are in excellent agreement with the experimental data. The model predicts a vanishing leptonic Dirac CP violating phase as well as an effective Majorana neutrino mass parameter of neutrinoless double beta decay, with values m ββ = 2 and 48 meV for the normal and the inverted neutrino mass hierarchies, respectively.Keywords: Fermion masses and mixings, Discrete flavor symmetries, 3-3-1 models, Models beyond the Standard Model.

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Viable textures for the fermion sector

Hernández

Varzielas

2015

J. Phys. G: Nucl. Part. Phys.

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We consider a modification of the Fukuyama-Nishiura texture and compare it to the precision quark flavour data, finding that it fits the data very well but at the cost of accidental cancelations between parameters. We then propose different viable textures for quarks, where only the Cabibbo mixing arises from the down sector, and extend to the charged leptons while constructing a complementary neutrino structure that leads to viable lepton masses and mixing.

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Textures of Yukawa coupling matrices in the 2HDM type III

Cited by 5 publications

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Quark masses and mixings in the RS1 model with a condensing 4th generation

Quark masses and mixings in the RS1 model with a condensing 4th generation

A predictive 3-3-1 model with A 4 flavor symmetry

Viable textures for the fermion sector

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