Higgs portal dark matter in the minimal gauged $U(1)_{B-L}$ model

Details Higgs portal dark matter in the minimal gauged $U(1)_{B-L}$ model Higgs portal dark matter in the minimal gauged $U(1)_{B-L}$ model

2010-02-12

arxiv.org/abs/1002.2525v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures

Scientific paper

We propose a scenario of the right-handed neutrino dark matter in the context of the minimal gauged $U(1)_{B-L}$ model by introducing an additional parity which ensures the stability of dark matter particle. The annihilation of this right-handed neutrino takes place dominantly through the s-channel Higgs boson exchange, so that this model can be called Higgs portal dark matter model. We show that the thermal relic abundance of the right-handed neutrino dark matter with help of Higgs resonance can match the observed dark matter abundance. In addition we estimate the cross section with nucleon and show that the next generation direct dark matter search experiments can explore this model.

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