Speaker
Thi Thuy Nguyen
(Yonsei Univ.)
Description
In the 3-3-1 model with right-handed neutrinos, small neutrino masses can be obtained by introducing a Higgs sextet. The neutrino mass is the result of a type II seesaw mechanism. In addition to the ordinary heavy right-handed neutrinos, there exits the scalar sextet coupled to leptons. We study the contributions of the right-handed neutrinos and the sextet to the lepton asymmetry.