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Tevatron combination of single-top-quark cross sections and determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element V.sub.tb./sub
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SYSNO ASEP 0456721 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tevatron combination of single-top-quark cross sections and determination of the magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vtb./sub Author(s) Aaltonen, T. (FI)
Abazov, V. M. (RU)
Abbott, B. (US)
Kupčo, Alexander (FZU-D) RID, ORCID
Lokajíček, Miloš (FZU-D) RID, ORCID
Lysak, R. (CZ)Number of authors 767 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 115, č. 15 (2015), "152003"-"152003-11"Number of pages 11 s. Language eng - English Country US - United States Keywords Batavia TEVATRON Coll ; channel cross section ; measured ; CKM matrix ; CDF ; DZERO ; 1960 GeV-cms Subject RIV BF - Elementary Particles and High Energy Physics Institutional support FZU-D - RVO:68378271 UT WOS 000362337400004 EID SCOPUS 84949883642 DOI 10.1103/PhysRevLett.115.152003 Annotation We present the final combination of CDF and D0 measurements of cross sections for single-top-quark production in proton-antiproton collisions at a center-of-mass energy of 1.96 TeV. The data correspond to total integrated luminosities of up to 9.7 fb−1 per experiment. The t-channel cross section is measured to be σt=2.25-0.31+0.29 pb. We also present the combinations of the two-dimensional measurements of the s- vs t-channel cross section. In addition, we give the combination of the s+t channel cross section measurement resulting in σs+t=3.30-0.40+0.52 pb, without assuming the standard model value for the ratio σs/σt. The resulting value of the magnitude of the top-to-bottom quark coupling is |Vtb|=1.02-0.05+0.06, corresponding to |Vtb|>0.92 at the 95% C.L./n Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
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