We show that the discovery channel for dark matter (DM) production at colliders can be through flavor violating interactions resulting in a novel signature of a single top and large missing transverse energy. We discuss several examples where the production of DM is dominated by flavor violating couplings. Discovery at the 7 TeV LHC with a few fb^-1 may already be possible.

COBISS.SI-ID: 25477159

We studied the Einstein-Hilbert action for the gravitational field in the presence of a source, approximated by a point particle. The dynamical variables of such a system satisfy the point-particle mass shell constraint, and the constraints of the canonical gravity. In the quantized theory, those constraints become the system of equations that contain the Klein-Gordon, Wheeler-DeWitt and Schrödinger equation. We also generalized the system to p-branes, and showed how such treatment can explain the observed small value of the cosmological constant.

COBISS.SI-ID: 25003303

Precise measurements of the top quark decay properties at hadron colliders offer interesting new possibilities of testing the standard model. At the same time, recent intriguing experimental results concerning CP violation in the Bd and Bs systems have stimulated many studies of physics beyond the standard model. We investigate anomalous t W dj interactions as a possible source of new effects in Bd,s - bar Bd,s oscillations within a model independent approach based on the assumptions of Minimal Flavor Violation.

COBISS.SI-ID: 24857639