期刊
PHYSICAL REVIEW D
卷 89, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.89.013007
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资金
- International Max Planck Research School for Precision Tests of Fundamental Symmetries
- Young Researcher Overseas Visits Program for Vitalizing Brain Circulation Japanese in JSPS [R2209]
We consider a U(1)' gauge symmetry acting on three generations of right-handed neutrinos. The U(1)' symmetry is broken at the TeV scale, and its remnant discrete symmetry makes one of the right-handed neutrinos stable. As a natural consequence of the anomaly cancellation, the neutrino mass matrix consists of a combination of type I (TeV scale) seesaw and radiative corrections. The stable right-handed neutrino communicates with the Standard Model via s-channel exchange of the Higgs field and the U(1)' gauge boson, so that the observed relic density for dark matter is obtained in a wide range of the parameter space. The experimental signatures in collider and other experiments are briefly discussed.
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