Abstract
The preliminary results of anisotropic transverse flow will be reported in 158 A GeV Pb + Pb collisions.The centrality dependence of the directed flow has been measured at the target rapidity region. The directed flow of the pions is opposite to that of the protons, where the magnitude of the directed flow of protons seem to be significantly smaller than observed at AGS energies and than RQMD. While, maximum directed flow is observed in more peripheral events. Near mid-rapidity region, the elliptic flow of a π± mesons is studied. The shape of the two-pion correlation function is investigated as a function of the two-particle emission angle relative to the target proton flow. Our preliminary results show an indication of a dependence of the two-pion correlation function on the direction of emission relative to the target flow direction for semi-central collisions.KeywordsReaction planehadronsdirected flowelliptic flowHBT
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