The 16th International Workshop on Tau Lepton Physics (TAU2021) (Virtual Edition)

Non zero θ_13 and δ_CP in a realistic neutrino mass model with discrete A_4 family symmetry and perturbation to Tri-bimaximal mixing via z_2 ×z_2 invariant perturbation in the neutrino sector.

1 Oct 2021, 10:50

2h

Virtual (Indiana University)

Poster contribution Tau2021 Abstracts Poster session: Breakout room 3

Speaker

Gayatri Ghosh (Physics Department Gauhati University)

Description

In this work, a flavour theory, of a neutrino mass model implementing an $A_4$ family symmetry is proposed. This scheme provides a simple way to derive tribimaximal mixing in the neutrino sector via spontaneous breaking of $A_4$ symmetric model leading to acceptable values of ${\theta }_{13}$ and maximal CP violation. A $z_2\times z_2$ invariant perturbations in this model is introduced in the neutrino sector which leads to testable predictions of ${\theta }_{13}$ and CP violation. By changing the magnitudes of perturbations in neutrino sector, one can generate viable values of ${\theta }_{13}$ and neutrino oscillation parameters.

Presentation materials

The 16th International Workshop on Tau Lepton Physics_GayatriGhosh.pdf