Search for heavy stable charged particles in pp collisions at √ s = 7 TeV
Name
Khachatryan2011_Article_SearchForHeavyStableChargedPar.pdf
Description
Published version
Size
461.51 KB
Format
Adobe PDF
Checksum (MD5)
a4953266f4598feafcb76bfd1e1fce40
Author(s)
The CMS Collaboration
Date Issued
2011
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
Khachatryan, V., et al. "Search for Heavy Stable Charged Particles in Pp Collisions at Root S=7 Tev." Journal of High Energy Physics 3 (2011).
Version
Final published version
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
10.1007/JHEP03(2011)024
https://doi.org/10.1007/JHEP03(2011)024
