Program

P.39 -- Poster, NCTP-41

Date: Tuesday, 2 August 2016

Time: 08h30 - 10h00

The electroweak theory based on SU(4)L X U(1)X gauge group

H. N. Long (1), L. T. Hue (1), and D. V. Loi (1, 2)

(1) Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi, Vietnam; (2) Physics Division, Mathematics-Physics-Informatics faculty, Tay Bac University, SonLa, Vietnam

In the work, the first we present generalized gauge models based on SU(3)C X SU(4)L X U(1)X (3-4-1) gauge group with arbitrary electric charge of leptons. The mixing matrix of neutral gauge bosons is analysed, the eigenmasses and eigenstates are obtained. The anomaly free as well asmatching conditions are discussed precisely. In the second part, we present new development of the original 3-4-1 model. In difference from previous works, in this paper the neutrinos, with the help of the decuplet H, get the Dirac masses at the tree level. In the limit of lepton number conservation, the Higgs sector contains all massless Goldstone bosons for massive gauge bosons and the SM-like Higgs. Some phenomenology are pointed out.

Presenter: Duong Van Loi