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Measurement of the top quark charge in pp collisions at root s=7 TeV with the ATLAS detector
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
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2013 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 11, 031- p.Article in journal (Refereed) Published
Abstract [en]

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 7TeV. 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 (t) over bar 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.

Place, publisher, year, edition, pages
2013. no 11, 031- p.
Keyword [en]
Hadron-Hadron Scattering, Top physics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-136999DOI: 10.1007/JHEP11(2013)031ISI: 000326719500001Scopus ID: 2-s2.0-84896384286OAI: oai:DiVA.org:kth-136999DiVA: diva2:677749
Funder
EU, European Research Council
Note

QC 20131210. Author count: 2914

Available from: 2013-12-10 Created: 2013-12-10 Last updated: 2017-12-06Bibliographically approved

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Strandberg, Jonas

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Jovicevic, JelenaKuwertz, EmmaLund-Jensen, BengtStrandberg, Jonas
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