Search for natural Supersymmetry in events with 1 b-tagged jet using   razor variables at 8 TeV
  We discuss a search for natural Supersymmetry in events with at least one bottom-quark jet using razor variables in proton-proton collisions at 8 TeV with the CMS detector. The event distribution in the plane defined by the razor variables $R^2$ and $M_R$ is studied, searching for a peaking signal on top of a smoothly falling standard model background. The data are consistent with the expected background, modeled by a template function. The 95% C.L. exclusion limit on the masses of the gluino and lightest supersymmetric particle in a benchmark simplified model is presented. For a lightest supersymmetric particle mass of 100 GeV, the pair production of gluinos in a multi-bottom final state is excluded for gluino masses up to 1375 GeV. 
Javier Duarte
hep-ex