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25 April 2024

» pubmed » pmid11531476

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Charged-particle pseudorapidity density distributions from Au+Au collisions at sqrt[s(NN)]=130 GeV
B B Back ; M D Baker ; D S Barton ; R R Betts ; R Bindel ; A Budzanowski ; W Busza ; A Carroll ; M P Decowski ; E Garcia ; N George ; K Gulbrandsen ; S Gushue ; C Halliwell ; G A Heintzelman ; C Henderson ; D J Hofman ; R Ho?y?ski ; B Holzman ; E Johnson ; J L Kane ; J Katzy ; N Khan ; W Kucewicz ; P Kulinich ; W T Lin ; S Manly ; D McLeod ; J Micha?owski ; A C Mignerey ; J Mülmenstädt ; R Nouicer ; A Olszewski ; R Pak ; I C Park ; H Pernegger ; C Reed ; L P Remsberg ; M Reuter ; C Rol ; G Rol ; L Rosenberg ; P Sarin ; P Sawicki ; W Skulski ; S G Steadman ; P Steinberg ; G S Stephans ; M Stodulski ; A Sukhanov ; J L Tang ; R Teng ; A Trzupek ; C Vale ; G J van Nieuwenhuizen ; R Verdier ; B Wadsworth ; F L Wolfs ; B Wosiek ; K Wo?niak ; A H Wuosmaa ; B Wys?ouch ;
Date:	3 Sep 2001
Journal:	Phys Rev Lett, 87 (10), 102303
Abstract:	The charged-particle pseudorapidity density dN(ch)/d eta has been measured for Au+Au collisions at sqrt[s(NN)] = 130 GeV at RHIC, using the PHOBOS apparatus. The total number of charged particles produced for the 3% most-central Au+Au collisions for /eta/<or=5.4 is found to be 4200+/-470. The evolution of dN(ch)/d eta with centrality is discussed, and compared to model calculations and to data from proton-induced collisions. The data show an enhancement in charged-particle production at midrapidity, while in the fragmentation regions, the results are consistent with expectations from pp and pA scattering.
Source:	PubMed, pmid11531476
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