Charged-Particle Pseudorapidity Density Distributions from Au+Au Collisions at
Journal Article
·
· Physical Review Letters
- and others
The charged-particle pseudorapidity density dN{sub ch}/d{eta} has been measured for Au+Au collisions at s{sub 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}|{<=}5.4 is found to be 4200{+-}470 . The evolution of dN{sub 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.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC02-98CH10886; FC02-94ER40818; FG02-93ER40802; FG02-94ER40865; FG02-99ER41099; W-31-109-ENG-38
- OSTI ID:
- 40277515
- Journal Information:
- Physical Review Letters, Vol. 87, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.87.102303; Othernumber: PRLTAO000087000010102303000001; 003137PRL; PBD: 3 Sep 2001; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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