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Testing the dark matter scenario in the inert doublet model by future precision measurements of the Higgs boson couplings

Testing the dark matter scenario in the inert doublet model by future precision measurements of the Higgs boson couplings

We evaluate radiative corrections to the Higgs boson couplings in the inert doublet model, in which the lightest component of the $Z_2^{}$ odd scalar doublet field can be a dark matter candidate. The one-loop contributions to the $hVV$, $hff$ and $hhh$ couplings are calculated in the on-shell scheme, where $h$ …