Centrality dependence of direct photon production in s(NN)**(1/ 2) = 200-GeV Au + Au collisions - INSPIRE

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Centrality dependence of direct photon production in s(NN)**(1/ 2) = 200-GeV Au + Au collisions

PHENIX

Collaboration

Mar, 2005

6 pages

Published in:

Phys.Rev.Lett. 94 (2005) 232301

e-Print:

nucl-ex/0503003 [nucl-ex]

DOI:

10.1103/PhysRevLett.94.232301

Experiments:

BNL-RHIC-PHENIX

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Abstract:

The first measurement of direct photons in Au+Au collisions at sqrt(s_NN) = 200 GeV is presented. The direct photon signal is extracted as a function of the Au+Au collision centrality and compared to NLO pQCD calculations. The direct photon yield is shown to scale with the number of nucleon-nucleon collisions for all centralities.

Note:

329 authors, 6 pages text, 3 figures, 1 Table. Submitted to PRL. 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

25.75.Dw
heavy ion-nucleus reactions
nuclei with mass number 190 to 219
photon production
quantum chromodynamics
direct reactions
nucleus nucleus: colliding beams
scattering: heavy ion
gold
photon: direct production

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Figures(0)

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