Measurement of the t[bar over t] production cross section in the τ+jets channel in pp collisions at √s =7 TeV
Author(s)
Apyan, Aram; Bauer, Gerry P; Bendavid, Joshua L.; Busza, Wit; Cali, Ivan Amos; Dutta, Valentina; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Klute, Markus; Krajczar, Krisztian F.; Levin, Andrew Michael; Luckey Jr, P David; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Roland, Christof E; Roland, Gunther M; Rudolph, Matthew Scott; Stephans, George S. F.; Stoeckli, Fabian; Sumorok, Konstanty C; Sung, Kevin Kai Hong; Velicanu, Dragos Alexandru; Wenger, Edward Allen; Wolf, Roger; Wyslouch, Boleslaw; Yang, Mingming; Yoon, A. S.; Zanetti, Marco; Wyslouch, Victoria; Chan, M.; Kim, Y.; ... Show more Show less
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Alternative title
Measurement of the t¯t production cross section in the τ + jets channel in pp collisions at √s = 7 TeV
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Show full item recordAbstract
The top-quark pair production cross section in 7 TeV center-of-mass energy proton–proton collisions is measured using data collected by the CMS detector at the LHC. The measurement uses events with one jet identified
as a hadronically decaying τ lepton and at least four additional energetic jets, at least one of which is identified as coming from a b quark. The analyzed data sample corresponds to an integrated luminosity of 3.9 fb[superscript −1] recorded by a dedicated multijet plus hadronically decaying τ trigger. A neural network has been developed to separate the top-quark pairs from the W+jets and multijet backgrounds. The measured value of σ[subscript t[bar over t]] = 152 ± 12 (stat.) ± 32 (syst.) ± 3 (lum.) pb is consistent with the standard model predictions.
Date issued
2013-04Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
The European Physical Journal C
Publisher
Springer-Verlag
Citation
The CMS Collaboration et al. “Measurement of the t[bar over t] Production Cross Section in the Τ+jets Channel in Pp Collisions at √s =7 TeV.” The European Physical Journal C 73.4 (2013): n. pag. © 2013 CERN for the benefit of the CMS collaboration
Version: Final published version
ISSN
1434-6044
1434-6052