Results from Cu plus Au Collisions at 200 GeV in PHENIX Experiment

Collisions of asymmetric nuclei (Cu+Au) differ essentially from the case of symmetric nuclei (Cu+Cu, Au+Au) collisions in the geometry of overlap region. This leads to a number of consequences, which provide more absolute and accurate information about fundamental properties of matter under extreme conditions. Nuclear modification factors for pmesons in Cu+Au interactions at 200 GeV were measured in PHENIX Experiment at RHIC. New experimental data on measurement of flows of different order (v(1), v(2)) for light hadrons in Cu+Au interactions at 200 GeV will be discussed in this paper.