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Sigma(-)-antihyperon correlations in Z(0) decay and investigation of the baryon production mechanism

SYSNO ASEP	0349742
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Sigma(-)-antihyperon correlations in Z(0) decay and investigation of the baryon production mechanism
Author(s)	Abbiendi, G. (IT) Ainsley, C. (GB) Akesson, P.F. (CH) Taševský, Marek (FZU-D)_{RID, ORCID}
Source Title	European Physical Journal C. - : Springer - ISSN 1434-6044 Roč. 64, č. 4 (2009), s. 609-625
Number of pages	7 s.
Language	eng - English
Country	DE - Germany
Keywords	LEP ; correlations ; antihyperon ; baryon quantum numbers
Subject RIV	BF - Elementary Particles and High Energy Physics
R&D Projects	LC527 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z10100502 - FZU-D (2005-2011)
UT WOS	000272803600006
DOI	10.1140/epjc/s10052-009-1175-z
Annotation	Data collected around centre-of-mass energies of 91 GeV by the OPAL experiment at the LEP e+e− collider are used to study the mechanism of baryon formation. As the signature, the fraction of Σ− hyperons whose baryon number is compensated by the production of a Σ−(bar), $/Lambda^-$ or $/Xi^-$ antihyperon is determined. The method relies entirely on quantum number correlations of the baryons, and not rapidity correlations, making it more model independent than previous studies.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2011

Number of the records: 1