Seesaw lepton masses and muon g-2 from heavy vector-like leptons

被引：0
作者：
Lee, Hyun Min [1 ]
Song, Jiseon [1 ]
Yamashita, Kimiko [1 ,2 ]
机构：
[1] Chung Ang Univ, Dept Phys, Seoul 06974, South Korea
[2] Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2021年 / 79卷 / 12期
基金：
新加坡国家研究基金会;
关键词：
Muon g-2; Vector-like lepton; Dark photon; Seesaw mechanism; ANOMALOUS MAGNETIC-MOMENT;
D O I：
10.1007/s40042-021-00339-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a model for the vector-like lepton to explain the small muon mass by a seesaw mechanism, based on leptonspecific two Higgs doublet models with a local U(1)' symmetry. There is no bare muon mass for a nonzero U(1)' charge of the leptophilic Higgs doublet, so the physical muon mass is generated due to the mixing between the vector-like lepton and the muon after the leptophilic Higgs doublet and the dark Higgs get VEVs. In this scenario, the non-decoupling effects of the vector- like lepton give rise to leading contributions to the muon g - 2, thanks to the light Z' and the light dark Higgs boson. We discuss various constraints on the model from lepton flavor violation, electroweak precision and Higgs data, as well as collider searches.
引用
收藏
页码：1121 / 1134
页数：14
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