Program

O.15 -- Oral, NCTP-40

Date: Wednesday, 29 July 2015

Time: 11h40 - 12h00

A general scenario of a model with A4 discrete symmetry

Dinh Nguyen Dinh(1), Nguyen Anh Ky(1), Phi Quang Van(1), Nguyen Hong Van(1)

(1) Institute of physics

In this research, an extended version of the standard model (SM) with $A_4$ discrete symmetry is considered. Two SM-like Higgs doublets are added to the SM one to form an $A_4$ Higgs triplet, whose vacuum expectation value $(v_1,v_2,v_3)^T$ satisfies the relation $m_e:m_{\mu}:m_\tau=v_1:v_2:v_3$. A light active neutrino mass matrix is generated through the type-I see-saw mechanism by adding 4 right-handed neutrino multiplets, which are one $A_4$ triplet and three $(1,1',1'')$ $A_4$ singlets. The PMNS matrix obtained after fitting with the current experimental data is checked by applying it to calculating some physical quantities, such as $|\langle m_{ee}\rangle|$ and $J_{CP}$.

Presenter: Phí Quang Văn