Particle type dependences of hadron yield and emission patterns, especially its difference between mesons and baryons, at intermediate pT (2-5GeV/c) is one of the findings in heavy ion collisions at RHIC. A systematic study of identified hadron production was performed in Au+Au/Cu+Cu collisions at (√SNN)=62.4/200GeV, to investigate the possible origins of this difference. In this paper, we show particle ratios, elliptic flow strengths, and their scaling properties.
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