Search for W' → t[bar over b] in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of √s = 8 TeV with the ATLAS detector
Author(s)
Taylor, Frank E.
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A search for new charged massive gauge bosons, called W′, is performed with the ATLAS detector at the LHC, in proton–proton collisions at a centre-of-mass energy of √s = 8 TeV, using a dataset corresponding to an integrated luminosity of 20.3 fb[superscript −1]. This analysis searches for W′ bosons in the W′→t[bar over b] decay channel in final states with electrons or muons, using a multivariate method based on boosted decision trees. The search covers masses between 0.5 and 3.0 TeV, for right-handed or left-handed W′ bosons. No significant deviation from the Standard Model expectation is observed and limits are set on the W′→t[bar over b] cross-section times branching ratio and on the W′-boson effective couplings as a function of the W′-boson mass using the CLs procedure. For a left-handed (right-handed) W′ boson, masses below 1.70 (1.92) TeV are excluded at 95% confidence level.
Date issued
2015-02Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physics Letters B
Publisher
Elsevier
Citation
“Search for W' → t[bar over b] in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of √s = 8 TeV with the ATLAS detector.” Physics Letters B 743 (April 2015): 235–255.
Version: Final published version
ISSN
03702693