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Identification of High Transverse Momentum Top Quarks in Pp Collisions at √s = 8 TeV with the ATLAS Detector

Author(s)
ATLAS Collaboration; Taylor, Frank E
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Abstract
This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb −1 of 8 TeV proton-proton collisions at the Large Hadron Collider. Predictions from Monte Carlo simulations are found to provide an accurate description of the performance. The techniques are compared in terms of signal efficiency and background rejection using simulations, covering a larger range in jet transverse momenta than accessible in the dataset. Additionally, a novel technique is developed that is optimized to reconstruct top quarks in events with many jets.[Figure not available: see fulltext.]
Date issued
2016-06
URI
http://hdl.handle.net/1721.1/114246
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Journal of High Energy Physics
Publisher
Springer International Publishing AG
Citation
Aad, G. et al. “Identification of High Transverse Momentum Top Quarks in Pp Collisions at √s = 8 TeV with the ATLAS Detector.” Journal of High Energy Physics 2016, 6 (June 2016): 93 © 2016 The Author(s)
Version: Final published version
ISSN
1029-8479
1126-6708

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