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Measurement of the normalized Z/γ* μ+μ- transverse momentum distribution in collisions at √s=1.96 TeV

SYSNO ASEP	0365635
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Measurement of the normalized Z/γ* μ+μ- transverse momentum distribution in collisions at √s=1.96 TeV
Author(s)	Abazov, V. M. (RU) Abbott, B. (US) Abolins, M. (US) Kupčo, Alexander (FZU-D)_{RID, ORCID} Lokajíček, Miloš (FZU-D)_{RID, ORCID}
Number of authors	445
Source Title	Physics Letters. B. - : Elsevier - ISSN 0370-2693 Roč. 693, č. 5 (2010), s. 522-530
Number of pages	9 s.
Language	eng - English
Country	NL - Netherlands
Keywords	bosons ; differential cross section ; perturbative QCD ; event generators ; Monte Carlo models
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000283701300003
DOI	10.1016/j.physletb.2010.09.012
Annotation	We present a new measurement of the Z/γ* transverse momentum distribution in the range 0–330 GeV, in proton–antiproton collisions at View the MathML source. The measurement uses 0.97 fb−1 of integrated luminosity recorded by the D0 experiment and is the first using the Z/γ* μ+μ−+X channel at this center-of-mass energy. This is also the first measurement of the Z/γ* transverse momentum distribution that presents the result at the level of particles entering the detector, minimizing dependence on theoretical models. As any momentum of the Z/γ* in the plane transverse to the incoming beams must be balanced by some recoiling system, primarily the result of QCD radiation in the initial state, this variable is an excellent probe of the underlying process. Tests of the predictions of QCD calculations and current event generators show they have varied success in describing the data.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2012

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