Physics and Astronomy
Journal or Book Title
Physical Review Letters
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 root S(NN) = 130 GeV. At high p(T) the spectra from peripheral nuclear collisions are consistent with 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-medium effect in central nuclear collisions at RHIC energies.
American Physical Society
Adcox, K.; Belikov, Sergey; Hill, John C.; Lajoie, John G.; Lebedev, Alexandre; Ogilvie, Craig; Petridis, Athanasios; Rosati, Marzia; Wohn, F. K.; et al.; and PHENIX Collaboration, "Suppression of hadrons with large transverse momentum in central Au+Au collisions at root s(NN)=130 GeV" (2002). Physics and Astronomy Publications. 362.