Search for supersymmetry with taus using the razor variables

We present a search for pair-produced supersymmetric particles in $\sqrt{s}$ = 7~TeV proton-proton collisions that decay to tau-enriched final states. The search is performed on 4.7 \fbinv of data collected by the CMS experiment in 2011 at the CERN Large Hadron Collider. The signal candidates are isolated from the standard model background using the dimensionless {\it razor} variable $R$, related to the missing transverse energy $E_T^{\rm miss}$. The new physics signal would be characterized by a broad peak in the distribution of $M_R$, an event-by-event indicator of the heavy particle mass scale. After background, modeled based on data, has been accounted for, no significant deviation is observed from the standard model expectation. The results are interpreted in tau-enriched simplified models of new physics.