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Universal scaling of the elliptic flow data at RHIC

M. Csanad·T. Csorgo·A. Ster·B. Lorstad·N. N. Ajitanand·J. M. Alexander·P. Chung·W. G. Holzmann·M. Issah·R. A. Lacey
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Abstract

Recent PHOBOS measurements of the excitation function for the pseudo-rapidity dependence of elliptic flow in Au+Au collisions at RHIC, have posed a significant theoretical challenge. Here we show that these differential measurements, as well as the RHIC measurements on transverse momentum satisfy a universal scaling relation predicted by the Buda-Lund model, based on exact solutions of perfect fluid hydrodynamics. We also show that recently found transverse kinetic energy scaling of the elliptic flow is a special case of this universal scaling.

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M. Csanad, T. Csorgo, A. Ster, B. Lorstad, N. N. Ajitanand, J. M. Alexander, P. Chung, W. G. Holzmann, M. Issah, R. A. Lacey. 2008-07-09. Universal scaling of the elliptic flow data at RHIC. https://doi.org/10.1140/epja%2Fi2008-10681-7

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