Nuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV

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dc.creatorPHENIX Collaboration
dc.creatorAdler, S. S.
dc.date2005-10-16
dc.date.accessioned2026-07-07T11:59:56Z
dc.date.available2026-07-07T11:59:56Z
dc.descriptionThe PHENIX experiment has measured mid-rapidity transverse momentum spectra (0.4 < p_T < 5.0 GeV/c) of electrons as a function of centrality in Au+Au collisions at sqrt(s_NN)=200 GeV. Contributions from photon conversions and from light hadron decays, mainly Dalitz decays of pi^0 and eta mesons, were removed. The resulting non-photonic electron spectra are primarily due to the semi-leptonic decays of hadrons carrying heavy quarks. Nuclear modification factors were determined by comparison to non-photonic electrons in p+p collisions. A significant suppression of electrons at high p_T is observed in central Au+Au collisions, indicating substantial energy loss of heavy quarks.
dc.description330 authors, 6 pages text, 3 figures. Submitted to Phys. Rev. Lett. 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/nucl-ex/0510047
dc.identifierhttp://arxiv.org/abs/nucl-ex/0510047
dc.identifierPhys.Rev.Lett.96:032301,2006
dc.identifierdoi:10.1103/PhysRevLett.96.032301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206742
dc.subjectNuclear Experiment
dc.titleNuclear Modification of Electron Spectra and Implications for Heavy Quark Energy Loss in Au+Au Collisions at sqrt(s_NN)=200 GeV
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