Published in:
Physical Review Letters 91,7 (2003) 072304;
Link to original published article:
http://dx.doi.org/10.1103/PhysRevLett.91.072304
Abstract
We report measurements of single-particle inclusive spectra and two-particle azimuthal distributions of charged hadrons at high transverse momentum (high p(T)) in minimum bias and central d+Au collisions at roots(NN)=200 GeV. The inclusive yield is enhanced in d+Au collisions relative to binary-scaled p+p collisions, while the two-particle azimuthal distributions are very similar to those observed in p+p collisions. These results demonstrate that the strong suppression of the inclusive yield and back-to-back correlations at high p(T) previously observed in central Au+Au collisions are due to final-state interactions with the dense medium generated in such collisions.
Keywords
nuclear collisions;; perturbative qcd;; energy-loss;; distributions
Date of this Version
January 2003