Search for Gluino-Mediated Supersymmetry in Events With Bottom-Quark Jets and Missing Transverse Energy With the Compact Muon Solenoid Detector at the Large Hadron Collider With Proton-Proton Collisions at 8 TeV

A search is presented for physics beyond the standard model based on events with significant missing transverse energy, at least three jets, and at least one identified bottom-quark jet. The study is based on a sample of 19 $fb^{-1}$ collected at 8 $TeV$ with the CMS detector at the Large Hadron Collider in 2012. The background from standard model processes is evaluated using data control samples, and a global likelihood fit is performed. The data are found to be consistent with standard model processes, and the results are interpreted in the context of simplified models (SMS). Upper limits on the production cross sections of the T1bbbb and T1tttt SMS new physics scenarios are determined. Gluino masses up to 1170 $GeV$ are excluded for the \tonebbbb scenario and up to 1020 $GeV$ for the T1tttt scenario, at 95% confidence level.