Differential directed flow in Au+Au collisions

Abstract

We present experimental data on directed flow in semi-central Au+Au collisions at incident energies from 90 to 400 A MeV. For the first time for this energy domain, the data are presented in a transverse momentum differential way. We study the first order Fourier coefficient v1 for different particle species and establish a gradual change of its patterns as a function of incident energy and for different regions in rapidity.

arXiv comment5 pages, Latex, 5 eps figures, accepted for publication in Phys. Rev. C (Rapid Communications). Data files available at http://www-linux.gsi.de/~andronic/fopi/v1.html

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• Open and hidden charm in proton-nucleus and heavy-ion collisions
• Directed flow in Au+Au, Xe+CsI and Ni+Ni collisions and the nuclear equation of state
• Effects of momentum conservation on the analysis of anisotropic flow
• Analysis of directed flow from elliptic flow
• Flow probe of symmetry energy in relativistic heavy-ion reactions
• First analysis of anisotropic flow with Lee--Yang zeroes
• Spectator induced electromagnetic effect on directed flow in heavy ion collisions
• Recent progress constraining the nuclear equation of state from astrophysics and heavy ion reactions
• Correlation between elliptic flow and shear viscosity in intermediate-energy heavy-ion collisions
• Nonequilibrium Models of Relativistic Heavy-Ion Collisions
• Strangeness production in heavy ion reactions at intermediate energies
• Constraining nucleon effective masses with flow and stopping observables from the S$\pi$RIT experiment
• Mach Cones and Hydrodynamic Flow: Probing Big Bang Matter in the Laboratory
• Spinodal Instability at the Onset of Collective Expansion in Nuclear Collisions
• Differential Transverse Flow in Central C-Ne and C-Cu Collisions at 3.7 GeV/nucleon
• Impact parameter dependence of the scaling of anisotropic flows in intermediate energy HIC