Charged-particle pseudorapidity density distributions from Au plus Au collisions at root s(NN)=130 GeV - art. no. 102303

Citation
Bb. Back et al., Charged-particle pseudorapidity density distributions from Au plus Au collisions at root s(NN)=130 GeV - art. no. 102303, PHYS REV L, 8710(10), 2001, pp. 2303
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8710
Issue
10
Year of publication
2001
Database
ISI
SICI code
0031-9007(20010903)8710:10<2303:CPDDFA>2.0.ZU;2-A
Abstract
The charged-particle pseudorapidity density dN(ch)/d eta has been measured for Au + Au collisions at roots(NN) = 130 GeV at RHIC, using the PHOBOS app aratus. The total number of charged particles produced for the 3% most-cent ral Au + Au collisions for \eta\ less than or equal to 5.4 is found to be 4 200 +/- 470. The evolution of dN(ch)/d eta with centrality is discussed, an d compared to model calculations and to data from proton-induced collisions . The data show an enhancement in charged-particle production at midrapidit y, while in the fragmentation regions, the results are consistent with expe ctations from pp and pA scattering.