期刊
COMMUNICATIONS IN THEORETICAL PHYSICS
卷 66, 期 3, 页码 340-348出版社
IOP PUBLISHING LTD
DOI: 10.1088/0253-6102/66/3/340
关键词
Fermion masses; three Higgs; dark matter
资金
- Wisconsin Alumni Research Foundation
In this paper we propose a possible explanation to the Fermion mass hierarchy problem by fitting the type-II seesaw mechanism into the Higgs doublet sector, such that their vacuum expectation values are hierarchal. We extend the Standard Model with two extra Higgs doublets as well as a spontaneously broken U-X (1) gauge symmetry. All the fermion Yukawa couplings except that of the top quark are of O(10(-2)) in our model. Constraints on the parameter space of the model from low energy processes are studied. Besides, the lightest one of the neutral fermion fields, which is introduced to cancel the anomalies of the U(1)(X) gauge symmetry can be the cold dark matter candidate. We investigate its signature in the dark matter direct detection.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据