Production of light vector mesons in heavy-ion nuclear collisions at RHIC,measured by the PHENIX spectrometer

The production cross sections of ω and ? mesons in p + p, d + Au, and Au + Au collisions at energies √S _NN = 63 and 200 GeV have been measured in the PHENIX experiment at RHIC. The results of the measurements in different hadronic and dielectron decay channels are in agreement within the measurement error. The nuclear modification factors R _AA measured for both mesons are consistent with the results previously obtained for light neutral mesons. The position and width of the meson mass peaks reconstructed in hadronic decay channels are in agreement with the results of measurements in vacuum.