Doubly-charged scalar bosons from the doublet
Doubly-charged scalar bosons from the doublet
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来自双峰的双电荷标量玻色子
DOI:
10.1016/j.physletb.2011.07.017
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发表时间:
2011
影响因子:
4.4
通讯作者:
柳生慶
中科院分区:
文献类型:
--
作者:
青木真由美;兼村晋哉;柳生慶
We consider the extended Higgs models, in which one of the isospin doublet scalar fields carries the hypercharge Y=3/2. Such a doublet field Φ3/2is composed of a doubly charged scalar boson as well as a singly charged one. We first discuss a simple model with Φ3/2(Model I), and study its collider phenomenology at the LHC. We then consider a new model for radiatively generating neutrino masses with a dark matter candidate (Model II), in which Φ3/2and an extra Y=1/2 doublet as well as vector-like singlet fermions carry the odd quantum number for an unbroken discrete Z2symmetry. We also discuss the neutrino mass model (Model III), in which the exact Z2parity in Model II is softly broken. It is found that the doubly charged scalar bosons in these models show different phenomenological aspects from those which appear in models with a Y=2 isospin singlet field or a Y=1 triplet one. They could be clearly distinguished at the LHC.
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