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Search for flavor changing neutral currents in decays of top quarks

SYSNO ASEP	0367666
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Search for flavor changing neutral currents in decays of top quarks
Author(s)	Abazov, V. M. (RU) Abbott, B. (US) Acharya, B.S. (IN) Kupčo, Alexander (FZU-D)_{RID, ORCID} Lokajíček, Miloš (FZU-D)_{RID, ORCID}
Number of authors	427
Source Title	Physics Letters. B. - : Elsevier - ISSN 0370-2693 Roč. 701, č. 3 (2011), 313-320
Number of pages	8 s.
Language	eng - English
Country	NL - Netherlands
Keywords	Tevatron ; D0 ; top quark ; flavor changing neutral current
Subject RIV	BF - Elementary Particles and High Energy Physics
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000293487600006
DOI	10.1016/j.physletb.2011.06.014
Annotation	We present a search for flavor changing neutral currents in decays of top quarks. The analysis is based on a search for t (t) over bar -> l´vl (l) over bar + jets (l, l´= e. mu) final states using 4.1 fb(-1) of integrated luminosity of p (p) over bar collisions at root s = 1.96 TeV. We extract limits on the branching ratio B(t -> Zq) (q = u, c quarks), assuming anomalous tuZ or tcZ couplings. We do not observe any sign of such anomalous coupling and set a limit of B < 3.2% at 95% C.L.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2013

Number of the records: 1