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Search for violation of Lorentz invariance in top quark pair production and decay
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SYSNO ASEP 0384508 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Search for violation of Lorentz invariance in top quark pair production and decay Author(s) Abazov, V. M. (RU)
Abbott, B. (US)
Acharya, B.S. (IN)
Kupčo, Alexander (FZU-D) RID, ORCID
Lokajíček, Miloš (FZU-D) RID, ORCIDNumber of authors 397 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 108, č. 26 (2012), "261603-1"-"261603-7"Number of pages 7 s. Language eng - English Country US - United States Keywords D0 ; violation Lorentz ; pair productionl ; decay ; Batavia TEVATRON, Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) LG12006 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000305738700006 DOI 10.1103/PhysRevLett.108.261603 Annotation 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 /ttbar production cross section in lepton+jets final states. We quantify this violation using the standard-model extension framework, which predicts a dependence of the /ttbar 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 (cQ)μν33 and (cU)μν33 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. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2013 Electronic address http://prl.aps.org/abstract/PRL/v108/i26/e261603
Number of the records: 1