Program

P.67 -- Poster, NCTP-42

Date: Wednesday, 2 August 2017

Time: 08h30 - 10h00

An A4 model with two Higgs singlets

Lam Hoang Thai, Do Thi Van Nhi, Nguyen Thanh Phong

Cantho University

We study the seesaw realization of a A4 model with two Higgs singlets. In this model, the mixing angle $\theta_{13}$ and leptogenesis are zero if the components of right handed neutrino mass matrix resulting from the two Higgs singlets are exact degenerate. We then study a tiny shift between aforementioned components. This minimal breaking results in deviations of lepton mixing angles from their tri-bimaximal mixing values in which the current experimental value of $\theta_{13}$ can be achieved. Besides, the baryon asymmetry of the Universe is successfully generated through non-zero leptogenesis by the decay of right handed neutrinos.

Presenter: Lam Hoang Thai