Charged particle densities from Au+Au collisions at s(NN)**(1/2) = 130-GeV

Collaboration
Aug, 2001
13 pages
Published in:
  • Phys.Lett.B 523 (2001) 227-233
e-Print:
Experiments:

Citations per year

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Abstract:
We present charged particle densities as a function of pseudorapidity and collision centrality for the 197Au+197Au reaction at sqrt{s_{NN}}=130 GeV. An integral charged particle multiplicity of 3860+/-300 is found for the 5% most central events within the pseudorapidity range -4.7 <= eta <= 4.7. At mid-rapidity an enhancement in the particle yields per participant nucleon pair is observed for central events. Near to the beam rapidity, a scaling of the particle yields consistent with the ``limiting fragmentation'' picture is observed. Our results are compared to other recent experimental and theoretical discussions of charged particle densities in ultra-relativistic heavy-ion collisions.
Note:
  • 14 pages, 4 figures; to be published in Phys. Lett. B
  • 25.75.Dw
  • nucleus nucleus: colliding beams
  • scattering: heavy ion
  • gold
  • hadron: multiple production
  • charged particle: rapidity spectrum
  • charged particle: multiplicity
  • impact parameter: dependence
  • model: nuclear reaction
  • scaling