New U(1) gauge model of radiative lepton masses with sterile neutrino and dark matter

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• 作者：Rathin Adhikari^a ; ^{rathin@ctp-jamia.res.in" class="auth_mail" title="E-mail the corresponding author} ; Debasish Borah^b ; Ernest Ma^c ; ^d
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 April 2016
• 年：2016
• 卷：755
• 期：Complete
• 页码：414-417
• 全文大小：297 K

文摘

An anomaly-free U(1) gauge extension of the standard model (SM) is presented. Only one Higgs doublet with a nonzero vacuum expectation is required as in the SM. New fermions and scalars as well as all SM particles transform nontrivially under this U(1), resulting in a model of three active neutrinos and one sterile neutrino, all acquiring radiative masses. Charged-lepton masses are also radiative as well as the mixing between active and sterile neutrinos. At the same time, a residual Z₂$Z_2$ symmetry of the U(1) gauge symmetry remains exact, allowing for the existence of dark matter.