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Scrutinizing Right-Handed Neutrino Portal Dark Matter With Yukawa Effect

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arxiv 1807.05122 v3 pith:QP63NSLH submitted 2018-07-13 hep-ph

Scrutinizing Right-Handed Neutrino Portal Dark Matter With Yukawa Effect

classification hep-ph
keywords darkmatterneutrinoeffectportalright-handedyukawaanalyzing
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Analyzing the neutrino Yukawa effect in the freeze-out process of a generic dark matter candidate with right-handed neutrino portal, we identify the parameter regions satisfying the observed dark matter relic density as well as the current Fermi-LAT and H.E.S.S. limits and the future CTA reach on gamma-ray signals. In this scenario the dark matter couples to the Higgs boson at one-loop level and thus could be detected by spin-independent nucleonic scattering for a reasonable range of the relevant parameters.

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