Search for Heavy Stable Charged Particles in pp collisions at 7 TeV

A signature-based search is performed for heavy stable charged particles (HSCPs) produced in $pp$ collisions at $\sqrt{s} = 7$ TeV, and collected with the CMS detector, using high transverse momentum muon, jet, and missing transverse energy trigger data corresponding to 198 nb$^{-1}$ of integrated luminosity. Momentum and ionization energy loss measurements are used to isolate candidate events with slowly moving, heavy particles. Additionally, tracks passing muon identification requirements are also analyzed for this signature. In both cases, no event passes the selection criteria with an expected background of less than 0.1 events. This result is interpreted within the contexts of (quasi-)stable stau, gluino, scalar top-quark models and cross section limits of about $10^2$ pb at 95\% C.L. are obtained. Lower limits at 95\% C.L. on the mass of stable gluinos are also set at 284 GeV/$c^2$ with the analysis that uses muon identification and 271 GeV/$c^2$ when no muon identification is required.