Search for supersymmetry in two-photons+jet events with razor variables in pp collisions at sqrt(s) = 8 TeV

A search for supersymmetry in pp collisions, in events with at least two photons and one jet, is presented. The dataset, collected at a center-of-mass energy $\sqrt{s}\,=\,8$ TeV in 2012, corresponds to an integrated luminosity of 19.7 fb$^{-1}$. The signal is characterized as a peak on a falling background in the razor kinematic variable $\mathrm{M_R}$, for events in the tail of the razor ratio $\mathrm{R^2}$. The observed event distribution in $\mathrm{M_R}$ is compatible with the prediction derived by the events with small values of $\mathrm{R^2}$. This result is interpreted as an exclusion limit on a set of simplified model spectra for squarks and gluinos, inspired by the phenomenology of gauge-mediated supersymmetry breaking.