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Measurement of the ratio of inclusive cross sections σ(ppbar ->Z+b-quark jet)/σ(ppbar ->Z+jet) at √s=1.96TeV

SYSNO ASEP	0367892
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of the ratio of inclusive cross sections σ(ppbar ->Z+b-quark jet)/σ(ppbar ->Z+jet) at √s=1.96TeV
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	412
Source Title	Physical Review D: Particles, Fields, Gravitation and Cosmology. - : American Physical Society - ISSN 1550-7998 Roč. 83, č. 3 (2011), "031105-1"-"031105-7"
Number of pages	7 s.
Language	eng - English
Country	US - United States
Keywords	D0 ; Tevatron ; quark ; jet
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000287797900001
DOI	10.1103/PhysRevD.83.031105
Annotation	The ratio of the cross section for p (p) over bar interactions producing a Z boson and at least one b-quark jet to the inclusive Z + jet cross section is measured using 4.2 fb(-1) of p (p) over bar collisions collected with the D0 detector at the Fermilab Tevatron collider at root s = 1.96 TeV. The Z -> l(+) l- candidate events with at least one b jet are discriminated from Z + charm and light jet(s) events by a novel technique that exploits the properties of the tracks associated to the jet. The measured ratio is 0: 0193 +/- 0: 0027 for events having a jet with transverse momentum p(T) > 20 GeV and pseudorapidity vertical bar eta vertical bar <= 2.5, which is the most precise to date and is consistent with theoretical predictions.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2013

Number of the records: 1