C. Adler et al., Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions at root s(NN)=130 GeV - art. no. 112303, PHYS REV L, 8711(11), 2001, pp. 2303
The minimum-bias multiplicity distribution and the transverse momentum and
pseudorapidity distributions for central collisions have been measured for
negative hadrons (h(-)) in Au + Au interactions at roots(NN) = 130 GeV. The
multiplicity density at midrapidity for the 5% most central interactions i
s dN(h)-/d eta\(eta =0) = 280 +/- (stat) +/- 20(syst), an increase per part
icipant of 38% relative to p (p) over bar collisions at the same energy. Th
e mean transverse momentum is 0.508 +/- 0.012 GcV/c and is larger than in c
entral Pb + Pb collisions at lower energies. The scaling of the h(-) yield
per participant is a strong function of p(perpendicular to). The pseudorapi
dity distribution is almost constant within \eta\ < 1.