Measurement of Single Electrons and Implications for Charm Production in Au + Au Collisions at √sNN = 130 GeV

Physical Review Letters Volume 88 Issue 19 Page 192303-1-192303-6 published_at 2002-04-30
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Title ( eng )
Measurement of Single Electrons and Implications for Charm Production in Au + Au Collisions at √sNN = 130 GeV
Creator
PHENIX Collaboration
Hachiya Takashi
Kohama Takeshi
Ohnishi Hiroaki
Sakaguchi Atsushi
Sumi Yoshio
Source Title
Physical Review Letters
Volume 88
Issue 19
Start Page 192303-1
End Page 192303-6
Abstract
Transverse momentum spectra of electrons from Au + Au collisions at √sNN = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semileptonic decays of charm. The yield of the electron signal dNe/dy for pT > 0.8 GeV/c is 0.025 ± 0.004(stat) ± 0.010(syst) in central collisions, and the corresponding charm cross section is 380 ± 60(stat) ± 200(syst) μb per binary nucleon-nucleon collision.
Language
eng
Resource Type journal article
Publisher
American Physical Society
Date of Issued 2002-04-30
Rights
Copyright (c) 2002 The American Physical Society.
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0031-9007
[DOI] 10.1103/PhysRevLett.88.192303
[NCID] AA00773679
[DOI] http://dx.doi.org/10.1103/PhysRevLett.88.192303