Search for heavy long-lived charged particles with the ATLAS detector in pp collisions at root s=7 TeV


Aad G., Abbott B., Abdallah J., Abdelalim A. A. , Abdesselam A., Abdinov O., ...More

PHYSICS LETTERS B, vol.703, no.4, pp.428-446, 2011 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 703 Issue: 4
  • Publication Date: 2011
  • Doi Number: 10.1016/j.physletb.2011.08.042
  • Journal Name: PHYSICS LETTERS B
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.428-446
  • Keywords: SUSY, ATLAS, Long-lived particles, E(+)E(-) COLLISIONS

Abstract

A search for long-lived charged particles reaching the muon spectrometer is performed using a data sample of 37 pb(-1) from pp collisions at root s = 7 TeV collected by the ATLAS detector at the LHC in 2010. No excess is observed above the estimated background. Stable (tau) over bar sleptons are excluded at 95% CL up to a mass of 136 GeV, in GMSB models with N-5 = 3 , m(messenger) = 250 TeV, sign(mu) = 1 and tan beta = 5. Electroweak production of sleptons is excluded up to a mass of 110 GeV. Gluino R-hadrons in a generic interaction model are excluded up to masses of 530 GeV to 544 GeV depending on the fraction of R-hadrons produced as (g) over bar -balls. (C) 2011 CERN. Published by Elsevier By. All rights reserved.