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Measurement of the forward-backward asymmetry in the production of B.sup. ±./sup. mesons in pp¯ collisions at √s = 1.96 TeV
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SYSNO ASEP 0452120 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Measurement of the forward-backward asymmetry in the production of B ± mesons in pp¯ collisions at √s = 1.96 TeV 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 364 Source Title Physical Review Letters. - : American Physical Society - ISSN 0031-9007
Roč. 114, č. 5 (2015), "051803-1"-"051803-8"Number of pages 8 s. Language eng - English Country US - United States Keywords meson ; Batavia TEVATRON Coll ; antiquark ; flavor ; quark ; production ; rapidity ; D0 Subject RIV BF - Elementary Particles and High Energy Physics Institutional support FZU-D - RVO:68378271 UT WOS 000349249500007 EID SCOPUS 84922362368 DOI 10.1103/PhysRevLett.114.051803 Annotation We present a measurement of the forward-backward asymmetry in the production of B± mesons, AFB(B±), using B±→J/ψK± decays in 10.4 fb−1 of pp¯ collisions at s√=1.96 TeV collected by the D0 experiment during Run II of the Tevatron collider. A nonzero asymmetry would indicate a preference for a particular flavor, i.e., b quark or b¯ antiquark, to be produced in the direction of the proton beam. We extract AFB(B±) from a maximum likelihood fit to the difference between forward- and backward-produced B± mesons. We measure an asymmetry consistent with zero: AFB(B±) = [−0.24 ± 0.41 (stat) ± 0.19 (syst)]%. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2016
Number of the records: 1