Pseudorapidity distributions of charged particles from Au+Au collisions at the maximum RHIC energy

Collaboration
Dec, 2001
4 pages
Published in:
  • Phys.Rev.Lett. 88 (2002) 202301
e-Print:
Experiments:

Citations per year

20012007201320192025051015202530
Abstract: (arXiv)
We present charged particle densities as a function of pseudorapidity and collision centrality for the 197Au+197Au reaction at Sqrt{s_NN}=200 GeV. For the 5% most central events we obtain dN_ch/deta(eta=0) = 625 +/- 55 and N_ch(-4.7<= eta <= 4.7) = 4630+-370, i.e. 14% and 21% increases, respectively, relative to Sqrt{s_NN}=130 GeV collisions. Charged-particle production per pair of participant nucleons is found to increase from peripheral to central collisions around mid-rapidity. These results constrain current models of particle production at the highest RHIC energy.
  • scattering: heavy ion
  • gold
  • charged particle: multiple production
  • charged particle: multiplicity
  • rapidity: density
  • dependence: impact parameter
  • energy dependence
  • model: production
  • BRAHMS
  • experimental results