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Measurement of the top quark charge in pp collisions at s√=7 TeV with the ATLAS detector

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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<mark>Journal publication date</mark>11/2013
<mark>Journal</mark>Journal of High Energy Physics
Issue number31
Volume2013
Number of pages41
Publication StatusPublished
<mark>Original language</mark>English

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 tt¯ 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.

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This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.