Type-I seesaw mechanism for neutrino mass and mixing in gauged B−L model with D4×Z4 flavor symmetry
Authors: Võ Văn Viên, Hoàng Ngọc Long, Đinh Phan Khôi
Modern Physics Letters A
: 2021 : 1-20
Publishing year: 6/2021
In this paper, we study a non-renormalizable U(1)B−L extension of the Standard Model with D4 and Z4 symmetries accommodating the most recent neutrino data within the type-I seesaw mechanism. The two squared mass differences and three mixing angles can get the best-fit values while the leptonic Dirac CP phase is in 1σ range of the best-fit values for both normal and inverted orderings. The sum of active neutrino mass and the effective neutrino masses are, respectively, predicted to be Pmν = 60.03meV, hmeei = 2.307meV and hmβi = 8.903meV for normal ordering while Pmν = 101.20meV, hmeei = 49.93meV and hmβi = 49.95meV for inverted ordering, which are well consistent with the current experimental constraints.
Extensions of electroweak gauge sector; extensions of electroweak Higgs sector; neutrino mass and mixing; nonstandard model neutrinos, right-handed neutrinos, discrete symmetries.
