Scrutinizing right-handed neutrino portal dark matter with Yukawa effect

Publication date: Available online 4 December 2018Source: Physics Letters BAuthor(s): Priyotosh Bandyopadhyay, Eung Jin Chun, Rusa Mandal, Farinaldo S. QueirozAbstractAnalyzing 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.

Source: Physics Letters B - December 5, 2018 Category: Physics Source Type: research