Charged-particle pseudorapidity density distributions from Au+Au collisions at sqrt(sNN)=130 GeV

Preprint

6 June 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.nucl-ex/0106006

Abstract

The charged-particle pseudorapidity density dNch/deta has been measured for Au+Au collisions at sqrt(sNN)=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|<=5.4 is found to be 4200+-470. The evolution of dNch/deta 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 mid-rapidity, while in the fragmentation regions, the results are consistent with expectations from pp and pA scattering.

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All Related Versions

Version 1, 2001-06-06, ArXiv
Published version: Physical Review Letters, 87 (10), 102303.

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