Measurement of the top quark charge in pp collisions at √s = 7 TeV with the ATLAS detector
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Taylor_Measurement of the top quark.pdf
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Author(s)
Taylor, Frank E.
Aad, G.
Abajyan, T.
Abbott, B.
Abdallah, J.
Abdel Khalek, S.
Abdelalim, A. A.
Abdinov, O.
Aben, R.
Abi, B.
Date Issued
November 2013
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Aad, G., T. Abajyan, B. Abbott, J. Abdallah, S. Abdel Khalek, A. A. Abdelalim, O. Abdinov, et al. “Measurement of the top quark charge in pp collisions at √s = 7 TeV with the ATLAS detector.” Journal of High Energy Physics 2013, no. 11 (November 5, 2013). © CERN, for the benefit of the ATLAS collaboration.
Version
Final published version
Abstract
A measurement of the top quark electric charge is carried out in the ATLAS experiment at the Large Hadron Collider using 2.05 fb[superscript −1] of data at a centre-of-mass energy of 7 TeV. In units of the elementary electric charge, the top quark charge is determined to be 0.64 ± 0.02 (stat.) ± 0.08 (syst.) from the charges of the top quark decay products in single lepton t[¯ over t] candidate events. This excludes models that propose a heavy quark of electric charge −4/3, instead of the Standard Model top quark, with a significance of more than 8σ.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/jhep11(2013)031
