Search for heavy stable charged particles in pp collisions at √s = 7 TeV

The CMS Collaboration

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

The result of a search at the LHC for heavy stable charged particles produced in pp collisions at √s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3:1 pb-1. Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0:1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c2, using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c2 is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.

Original languageEnglish (US)
Article number24
JournalJournal of High Energy Physics
Volume2011
Issue number3
DOIs
StatePublished - 2011
Externally publishedYes

Keywords

  • Hadron-Hadron scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Search for heavy stable charged particles in pp collisions at √s = 7 TeV'. Together they form a unique fingerprint.

  • Cite this