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Article
Report number arXiv:1411.6795 ; CERN-PH-EP-2014-252 ; CERN-PH-EP-2014-252
Title Searches for heavy long-lived charged particles with the ATLAS detector in proton--proton collisions at ss = 8 TeV
Related titleSearches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at sqrts = 8 TeV
Searches for heavy long-lived charged particles with the ATLAS detector in proton-proton collisions at s = 8 TeV
Author(s) ATLAS Collaboration  Vis alle 2891 forfattere
Publication 2015-01-14
Imprint 24 Nov 2014
Number of pages 37
Note Comments: 37 pages plus author list + cover pages (58 pages total), 11 figures, 8 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-22/
37 pages plus author list + cover pages (59 pages total), 11 figures, 8 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/SUSY-2013-22/
In: JHEP 01 (2015) 068
DOI 10.1007/JHEP01(2015)068
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Abstract Searches for heavy long-lived charged particles are performed using a data sample of 19.8 fb1 from proton--proton collisions at a centre-of-mass energy of s = 8 TeV collected by the ATLAS detector at the Large Hadron Collider. No excess is observed above the estimated background and limits are placed on the mass of long-lived particles in various supersymmetric models. Long-lived tau sleptons in models with gauge-mediated symmetry breaking are excluded up to masses between 440 and 385 GeV for tan(beta) between 10 and 50, with a 290 GeV limit in the case where only direct tau slepton production is considered. In the context of simplified LeptoSUSY models, where sleptons are stable and have a mass of 300 GeV, squark and gluino masses are excluded up to a mass of 1500 and 1360 GeV, respectively. Directly produced charginos, in simplified models where they are nearly degenerate to the lightest neutralino, are excluded up to a mass of 620 GeV. R-hadrons, composites containing a gluino, bottom squark or top squark, are excluded up to a mass of 1270, 845 and 900 GeV, respectively, using the full detector; and up to a mass of 1260, 835 and 870 GeV using an approach disregarding information from the muon spectrometer.
Copyright/License publication: © 2015-2025 CERN (License: CC-BY-4.0), sponsored by SCOAP³
preprint: © 2014-2025 CERN (License: CC-BY-3.0)



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Email contact: a_ciocio@lbl.gov


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