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NUMBER  
AUTHOR Chun, Eung Jin
TITLE Scrutinizing right-handed neutrino portal dark matter with Yukawa effect
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JOURNAL PHYSICS LETTERS B, 2019
ABSTRACT 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. (C) 2018 The Authors. Published by Elsevier B.V.
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