Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2001-09-05
Phys.Rev.Lett.88:022301,2002
Physics
Nuclear Physics
Nuclear Experiment
6 pages, 3 figures, 1 table, submitted to Physical Review Letters
Scientific paper
10.1103/PhysRevLett.88.022301
Transverse momentum spectra for charged hadrons and for neutral pions in the range 1 GeV/c $< p_T <$ 5 GeV/c have been measured by the PHENIX experiment at RHIC in Au+Au collisions at $\sqrt{s_{_{NN}}}=130$ GeV. At high $p_T$ the spectra from peripheral nuclear collisions are consistent with the naive expectation of scaling the spectra from p+p collisions by the average number of binary nucleon- nucleon collisions. The spectra from central collisions are significantly suppressed when compared to the binary- scaled p+p expectation, and also when compared to similarly binary-scaled peripheral collisions, indicating a novel nuclear effect in central nuclear collisions at RHIC energies.
Adcox K.
PHENIX Collaboration
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