Measurement of the top quark charge in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector
(2013) Journal of High Energy Physics — Vol. 11 (2013)
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- et. al.
- 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-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 ttbar 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 8 sigma.
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Citations
Tanasijczuk, A. J., ATLAS, & et al. (2013). Measurement of the top quark charge in $pp$ collisions at $\sqrt{s} =$ 7 TeV with the ATLAS detector. Journal of High Energy Physics, 11. https://doi.org/10.1007/JHEP11(2013)031 (Original work published 2013)