Centrality Dependence of p+/-, K+/-, p and p(overbar) Production from sqrt/sNN = 130 GeV Au+Au

Identified {pi}{sup {+-}}, K{sup {+-}}, p, and {bar p} transverse momentum spectra at midrapidity in {radical}[s{sub NN}] = 130 GeV Au + Au collisions were measured by the PHENIX experiment at RHIC as a function of collision centrality. Average transverse momenta increase with the number of participating nucleons in a similar way for all particle species. Within errors, all midrapidity particle yields per participant are found to be increasing with the number of participating nucleons. There is an indication that K{sup {+-}}, p, and p' yields per participant increase faster than the {pi}{sup {+-}} yields. In central collisions at high transverse momenta ({bar p}{sub T}2 GeV/c), {bar p} and p yields are comparable to the {pi}{sup {+-}} yields.