Abstract
We discuss the Higgs inflation scenario with singlet scalar dark matter and a right-handed neutrino. The singlet scalar and the right-handed neutrino play crucial roles for realizing a suitable plateau of Higgs potential with the center value of the top mass of Tevatron and LHC measurements. This Higgs inflation scenario predicts about a 1 TeV scalar dark matter and an $\mathcal{O}(1{0}^{14})\text{ }\text{ }\mathrm{GeV}$ right-handed neutrino by use of a 125.6 GeV Higgs mass, 173.34 GeV top mass, and a nonminimal gravity coupling $\ensuremath{\xi}\ensuremath{\simeq}10.1$. This inflation model is consistent with the recent result of the tensor-to-scalar ratio $r=0.2{0}_{\ensuremath{-}0.05}^{+0.07}$ by the BICEP2 Collaboration.
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