Directed and Elliptic Flow in Pb+Pb collisions at 40 and 158 AGeV

Abstract

Directed and elliptic flow are reported for charged pions and protons as a function of transverse momentum, rapidity, and centrality in 40 and 158 AGeV Pb + Pb collisions. The standard method of correlating particles with an event plane is used. The directed flow of protons is small and shows little variation near to midrapidity, but rises fast towards projectile rapidity in the 40 AGeV data. For most peripheral collisions the flat region becomes negative resulting in $v_1$ changing sign three times. Elliptic flow doesn't seem to change very much from 40 AGeV to 158 AGeV. The difference is smaller than anticipated from the overall energy dependence from AGS to RHIC.

arXiv commentPresented at 16th International Conference on Ultrarelativistic Nucleus-Nucelus Collisions, Quark Matter 2002 (QM 2002), Nantes, France, 18-24 Jul 2002, 4 pages, 3 figures

References in corpus (5)

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Cited by in corpus (5)

• Directed and elliptic flow of charged pions and protons in Pb+Pb collisions at 40 and 158A GeV
• Directed flow in ultrarelativistic heavy-ion collisions
• Anisotropic flow of charged and identified hadrons in the quark-gluon string model for Au+Au collisions at sqrt(s) = 200 GeV
• Splitting of proton-antiproton directed flow in relativistic heavy-ion collisions
• Microscopic description of anisotropic flow in relativistic heavy ion collisions