Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV

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dc.creatorPHENIX Collaboration
dc.creatorAdare, A.
dc.date2006-09-06
dc.date.accessioned2026-07-07T11:58:17Z
dc.date.available2026-07-07T11:58:17Z
dc.descriptionThe momentum distribution of electrons from decays of heavy flavor (charm and beauty) for midrapidity |y| < 0.35 in p+p collisions at sqrt(s) = 200 GeV has been measured by the PHENIX experiment at the Relativistic Heavy Ion Collider (RHIC) over the transverse momentum range 0.3 < p_T < 9 GeV/c. Two independent methods have been used to determine the heavy flavor yields, and the results are in good agreement with each other. A fixed-order-plus-next-to-leading-log pQCD calculation agrees with the data within the theoretical and experimental uncertainties, with the data/theory ratio of 1.72 +/- 0.02^stat +/- 0.19^sys for 0.3 < p_T < 9 GeV/c. The total charm production cross section at this energy has also been deduced to be sigma_(c c^bar) = 567 +/- 57^stat +/- 224^sys micro barns.
dc.description375 authors from 57 institutions, 6 pages, 3 figures. Submitted to Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
dc.identifierhttps://arxiv.org/abs/hep-ex/0609010
dc.identifierhttp://arxiv.org/abs/hep-ex/0609010
dc.identifierPhys.Rev.Lett.97:252002,2006
dc.identifierdoi:10.1103/PhysRevLett.97.252002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206172
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
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