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 (US) |
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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 - Dec 27 2001 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics