Regular Article - Theoretical Physics
Phenomenology of the gauge symmetry for right-handed fermions
Center for Advanced Quantum Studies, Department of Physics, Beijing Normal University, Beijing, 100875, China
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Accepted: 13 January 2018
Published online: 5 February 2018
In this paper we investigate the phenomenology of the U(1) gauge symmetry for right-handed fermions, where three right-handed neutrinos are introduced for anomalies cancellations. Constraints on the new gauge boson from mixing as well as the upper bound of production cross section in di-lepton channel at the LHC are presented. We further study the neutrino mass and the phenomenology of -portal dark matter in this model. The lightest right-handed neutrino can be the cold dark matter candidate stabilized by a flavor symmetry. Our study shows that active neutrino masses can be generated via the modified type-II seesaw mechanism; right-handed neutrino is available dark matter candidate for its mass being very heavy, or for its mass at near the resonant regime of the SM Higgs and(or) the new bosons; constraint from the dilepton search at the LHC is stronger than that from the mixing only for , where is the new gauge coupling.
© The Author(s), 2018