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A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole
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SYSNO ASEP 0375095 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title A study of the b-quark fragmentation function with the DELPHI detector at LEP I and an averaged distribution obtained at the Z Pole Author(s) Abdallah, J. (FR)
Abreu, A. (PT)
Adam, W. (AT)
Mašík, Jiří (FZU-D)
Němeček, Stanislav (FZU-D) RID, ORCID
Řídký, Jan (FZU-D) RID, ORCID
Todorovová, Šárka (FZU-D)
Trávníček, Petr (FZU-D) RID, ORCID
Vrba, Václav (FZU-D) RID, ORCIDNumber of authors 340 Source Title European Physical Journal C. - : Springer - ISSN 1434-6044
Roč. 71, č. 2 (2011), 1-50Number of pages 50 s. Language eng - English Country DE - Germany Keywords parton: showers ; bottom: fragmentation function ; jet: hadronization ; CERN ; LEP ; DELPHI ; quantum chromodynamics ; PYTHIA ; ALEPH ; OPAL ; SLD Subject RIV BF - Elementary Particles and High Energy Physics R&D Projects LA08015 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z10100502 - FZU-D (2005-2011) UT WOS 000291694100016 DOI 10.1140/epjc/s10052-011-1557-x Annotation The nature of b-quark jet hadronisation has been investigated using data taken at the Z peak by the DELPHI detector at LEP. Two complementary methods are used to reconstruct the energy of weakly decaying b-hadrons, E^weak_B. The average value of x^weak_B = E^weak_B/E_beam is measured to be 0.699 +/- 0.011. The resulting x^weak_B distribution is then analysed in the framework of two choices for the perturbative contribution (parton shower and Next to Leading Log QCD calculation) in order to extract measurements of the non-perturbative contribution to be used in studies of b-hadron production in other experimental environments than LEP. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2013
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