Campus Units

Physics and Astronomy

Document Type

Article

Publication Version

Published Version

Publication Date

5-2002

Journal or Book Title

Physical Review Letters

Volume

88

Issue

19

First Page

192303

DOI

10.1103/PhysRevLett.88.192303

Abstract

Transverse momentum spectra of electrons from Au+Au collisions at roots(NN) = 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 dN(e)/dy for p(T) > 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 ) mu b per binary nucleon-nucleon collision.

Comments

This article is published as Adcox, K., S. S. Adler, N. N. Ajitanand, Y. Akiba, J. Alexander, L. Aphecetche, Y. Arai et al. "Measurement of single electrons and implications for charm production in Au+Au collisions at sNN= 130 GeV." Physical Review Letters 88, no. 19 (2002): 192303. DOI:10.1103/PhysRevLett.88.192303. Posted with permission.

Copyright Owner

American Physical Society

Language

en

File Format

application/pdf

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