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Single electron yields from semileptonic charm and bottom hadron decays in Au+ Au collisions at √s.sub.NN./sub.=200 GeV
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SYSNO ASEP 0522570 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Single electron yields from semileptonic charm and bottom hadron decays in Au+ Au collisions at √sNN=200 GeV Author(s) Adare, A. (US)
Aidala, C. (US)
Ajitanand, N.N. (US)
Tomášek, Michal (FZU-D) RID
Vrba, Václav (FZU-D) RID, ORCIDNumber of authors 432 Article number 034904 Source Title Physical Review C. - : American Physical Society - ISSN 2469-9985
Roč. 93, č. 3 (2016), s. 1-29Number of pages 29 s. Language eng - English Country US - United States Keywords PHENIX ; electron hadron: correlation ; quark gluon: plasma ; vertex detector ; experimental results ; transverse momentum Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000371740400007 EID SCOPUS 84960485023 DOI 10.1103/PhysRevC.93.034904 Annotation The PHENIX Collaboration at the Relativistic Heavy Ion Collider has measured open heavy flavor production in minimum bias Au+Au collisions at sNN=200 GeV via the yields of electrons from semileptonic decays of charm and bottom hadrons. Previous heavy flavor electron measurements indicated substantial modification in the momentum distribution of the parent heavy quarks owing to the quark-gluon plasma created in these collisions. For the first time, using the PHENIX silicon vertex detector to measure precision displaced tracking, the relative contributions from charm and bottom hadrons to these electrons as a function of transverse momentum are measured in Au+Au collisions. We compare the fraction of electrons from bottom hadrons to previously published results extracted from electron-hadron correlations in p+p collisions at sNN=200 GeV and find the fractions to be similar within the large uncertainties on both measurements for pT>4GeV/c.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2020 Electronic address https://doi.org/10.1103/physrevc.93.034904
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