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MODERN PHYSICS LETTERS A 34, 1950005 (2019)

ISSN: 0217-7323, SCI

Lepton masses and mixings in a T’ flavored 3-3-1 model with type I and type II seesaw mechanisms

V. V. Vien, H. N. Long and A. E. Cárcamo Hernández

We propose a renormalizable T’ flavor model based on the SU(3)C X SU(3)L X U(1)X X U(1)L gauge symmetry, consistent with the observed pattern of lepton masses and mixings. The small masses of the light active neutrinos are produced from an interplay of type I and type II seesaw mechanisms, which are induced by three heavy right-handed Majorana neutrinos and three SU(3)L scalar antisextets, respectively. Our model is only viable for the scenario of normal neutrino mass hierarchy, where the obtained physical observables of the lepton sector are highly consistent with the current neutrino oscillation experimental data. In addition, our model also predicts an effective Majorana neutrino mass parameter of mβ ∼ 1.41541 × 10−2 eV, a Jarlskog invariant of the order of JCP ∼ −0.032 and a leptonic Dirac CP violating phase of δ = 238◦, which is inside the 1σ experimentally allowed range.

DOI: DOI: 10.1142/S0217732319500056