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Search for admixture of scalar top quarks in the ttbar lepton+jets final state at sqrt(s)=1.96 TeV

SYSNO ASEP	0336615
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Search for admixture of scalar top quarks in the ttbar lepton+jets final state at sqrt(s)=1.96 TeV
Title	Hledání skalárních top kvarků v rozpadovém kanále top-antitop párů na lepton+jety
Author(s)	Abazov, V. M. (RU) Abbott, B. (US) Abolins, M. (US) Kupčo, Alexander (FZU-D)_{RID, ORCID} Lokajíček, Miloš (FZU-D)_{RID, ORCID}
Source Title	Physics Letters. B. - : Elsevier - ISSN 0370-2693 Roč. 674, č. 1 (2009), 4-10
Number of pages	7 s.
Language	eng - English
Country	NL - Netherlands
Keywords	D0 ; scalar top quark ; lepton
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LA08047 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000265254000002
DOI	10.1016/j.physletb.2009.02.027
Annotation	A search for pair production of the lightest supersymmetric partner of the top quark is performed in the lepton+jets channel using 0.9 fb-1 of data collected by the D0 experiment. Kinematic differences between scalar top quark pair production and the dominant top quark pair production background are used to separate the two processes. First limits from Run II of the Fermilab Tevatron Collider for the scalar top quark decaying to a chargino and a b quark are obtained for scalar top quark masses of 130-190 GeV and chargino masses of 90-150 GeV.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2010

Number of the records: 1