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Recently the CDMS collaboration has reported an excess of events in thesignal region of a search for dark matter scattering with Silicon nuclei. Threeevents on an expected background of 0.4 have a significance of about 2 sigma,and it is premature to conclude that this is a signal of dark matter.Nonetheless, it is important to examine the space of particle theories capableof explaining this excess, to see what theories are capable of explaining it,and how one might exclude it or find corroborating evidence in other channels.We examine a simplified model containing a scalar mediator particle, and findregions consistent with the CDMS observations. Bounds from colliders putimportant restrictions on the theory, but viable points, including pointsleading to the observed thermal relic density, survive.

Particle Physics Implications and Constraints on Dark Matter Interpretations of the CDMS Signal