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Search for Violation of Lorentz Invariance in Top Quark Pair Production and Decay
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2012 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 108, no 26, 261603- p.Article in journal (Refereed) Published
Abstract [en]

Using data collected with the D0 detector at the Fermilab Tevatron Collider, corresponding to 5: 3 fb(-1) of integrated luminosity, we search for violation of Lorentz invariance by examining the t (t) over bar production cross section in lepton + jets final states. We quantify this violation using the standard-model extension framework, which predicts a dependence of the t (t) over bar production cross section on sidereal time as the orientation of the detector changes with the rotation of the Earth. Within this framework, we measure components of the matrices (c(Q))(mu nu 33) and (c(U))(mu nu 33) containing coefficients used to parametrize violation of Lorentz invariance in the top quark sector. Within uncertainties, these coefficients are found to be consistent with zero.

Place, publisher, year, edition, pages
2012. Vol. 108, no 26, 261603- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-178180DOI: 10.1103/PhysRevLett.108.261603ISI: 000305738700006OAI: oai:DiVA.org:uu-178180DiVA: diva2:542221
Available from: 2012-07-30 Created: 2012-07-30 Last updated: 2017-12-07Bibliographically approved

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Buszello, Claus P.

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