Abstract
We present charged particle densities as a function of pseudorapidity and collision centrality for the 197Au+197Au reaction at SNN = 130 GeV. An integral charged particle multiplicity of 3860 ± 300 is found for the 5% most central events within the pseudorapidity range -4.7 ≤ η ≤ 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.
| Original language | English |
|---|---|
| Pages (from-to) | 227-233 |
| Number of pages | 7 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 523 |
| Issue number | 3-4 |
| DOIs | |
| State | Published - 2001.12.27 |
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