Search for Dark Matter at CMS using Razor Kinematic Variables

A search for dark matter (DM) production at the Large Hadron Collider (LHC) is performed using razor kinematic variables. The analysis uses 19.5 fb$^{-1}$ of data~recorded by the CMS experiment~from proton-proton collisions at a center of~mass energy of sqrt(s) $=$ 8 TeV. The results are interpreted using an effective field theory framework where the mediator between the DM and standard model (SM) sectors is very heavy compared to the energy reach of the LHC. Limits on the cutoff scale, $\Lambda $, are set as a function of the DM candidate which under some assumptions can be converted into DM-nucleon cross sections limits and compared to direct and indirect detection experiments.