Phenomenology of a light cold dark matter two-singlet model

Abstract

We study the implications of phenomenological processes on a two-singlet extension of the standard model that we introduced in a previous work to describe light cold dark matter. We look into the rare decays of $\ensuremath{\Upsilon}$ and $B$ mesons, in particular, the invisible channels, and study the decay channels of the Higgs particle. Preferred regions of the parameter space are indicated, together with others that are excluded. We also comment on the recent Higgs search and findings at the LHC.