Search for direct top squark pair production in final states with two tau leptons in pp collisions at √s = 8 TeV with the ATLAS detector
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Search for direct.pdf
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2.84 MB
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Checksum (MD5)
705b257ee33e636fae5b8e7976a8f1cd
Author(s)
Taylor, Frank E
Date Issued
February 2016
Journal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
Atlas Collaboration et al. “Search for Direct Top Squark Pair Production in Final States with Two Tau Leptons in Pp Collisions at √s = 8 TeV with the ATLAS Detector.” The European Physical Journal C 76.2 (2016): n. pag. © 2016 CERN for the benefit of the ATLAS collaboration
Version
Final published version
Abstract
A search for direct pair production of the supersymmetric partner of the top quark, decaying via a scalar tau to a nearly massless gravitino, has been performed using 20 fb[superscript −1] of proton–proton collision data at s√=8 TeV. The data were collected by the ATLAS experiment at the LHC in 2012. Top squark candidates are searched for in events with either two hadronically decaying tau leptons, one hadronically decaying tau and one light lepton, or two light leptons. No significant excess over the Standard Model expectation is found. Exclusion limits at 95 % confidence level are set as a function of the top squark and scalar tau masses. Depending on the scalar tau mass, ranging from the 87 GeV LEP limit to the top squark mass, lower limits between 490 and 650 GeV are placed on the top squark mass within the model considered.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-016-3897-z
