Centrality dependence of charged particle multiplicity in Au-Au collisions at root(S)NN=130 GeV

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2001-04-16
Autores
Adcox, K.
Adler, S. S.
Ajitanand, N. N.
Akiba, Y.
Alexander, J.
Aphecetche, L.
Arai, Y.
Aronson, S. H.
Averbeck, R.
Awes, T. C.
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We present results for the charged-particle multiplicity distribution at midrapidity in Au-Au collisions at roots(NN) = 130 GeV measured with the PHENIX detector at RHIC. for the 5% most central collisions we find dN(ch)/d eta (|eta =0) = 622 +/- 1(stat) +/- 41(syst). the results, analyzed as a function of centrality show a steady rise of the particle density per participating nucleon with centrality.
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Physical Review Letters. College Pk: American Physical Soc, v. 86, n. 16, p. 3500-3505, 2001.