  The nature of dark matter (DM) particles and the mechanism that provides
their measured relic abundance are currently unknown. Likewise, the nature of
the inflaton is unknown as well. We investigate the triplet seesaw model in an
unified picture. At high energy scale, we consider Higgs inflation driven by an
admixture of standard model and triplet Higgs fields, both coupled
non-minimally to gravity. At intermediate and low energies we investigate
vector like fermion doublet DM candidates with a charge asymmetry in the dark
sector, which is generated by the same mechanism that provides the baryon
asymmetry, namely baryogenesis-via-leptogenesis induced by the decay of scalar
triplets. At the same time the model gives rise to neutrino masses in the
ballpark of oscillation experiments via type-II seesaw. We then apply Bayesian
statistics to infer the model parameters giving rise to the observed baryon
asymmetry and DM density, compatibly with inflationary and DM direct detection
constraints, updated with the CRESST-II excess, the new XENON100 data release
and KIMS exclusion limit.
