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Centrality dependence of charged particle multiplicity in Au-Au collisions at square root of (s)NN = 130 GeV |
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| Authors: | Adcox K Adler S S Ajitanand N N Akiba Y Alexander J Aphecetche L Arai Y Aronson S H Averbeck R Awes T C Barish K N Barnes P D Barrette J Bassalleck B Bathe S Baublis V Bazilevsky A Belikov S Bellaiche F G Belyaev S T Bennett M J Berdnikov Y Botelho S Brooks M L Brown D S Bruner N Bucher D Buesching H Bumazhnov V Bunce G Burward-Hoy J Butsyk S Carey T A Chand P Chang J Chang W C Chavez L L Chernichenko S Chi C Y Chiba J Chiu M Choudhury R K Christ T Chujo T Chung M S Chung P Cianciolo V Cole B A D'Enterria D G David G Delagrange H Denisov A Deshpande A Desmond E J Dietzsch O Dinesh B V Drees A |
| Institution: | Vanderbilt University, Nashville, Tennessee 37235, USA. |
| Abstract: | We present results for the charged-particle multiplicity distribution at midrapidity in Au-Au collisions at square root of s(NN)] = 130 GeV measured with the PHENIX detector at RHIC. For the 5% most central collisions we find dN(ch)/d eta(vertical line 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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