Search for Stopped Gluinos in pp collisions at sqrt(s)=7 TeV at CMS
Abstract
The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10-32 /cm2/s, an integrated luminosity of 10/pb, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference (mgluino-mneutralino)>100 GeV/c2, and assuming BR(gluino-> g neutralino)=100%, mgluino < 370 GeV/c2 are excluded for lifetimes from 10-6 s to 1000 s.