Abstract
We discuss hadron production in heavy ion collisions at RHIC. We argue that hadrons at transverse momenta P T < 5 GeV are formed by recombination of partons from the dense parton phase created in central collisions at RHIC. We provide a theoretical description of the recombination process for P T > 2 GeV. Below P T = 2 GeV our results smoothly match a purely statistical description. At hightransverse momentum hadron production is well describedin the language of perturbative QCD by the fragmentation of partons. We give numerical results for a variety of hadron spectra, ratios and nuclear suppression factors. We also discuss the anisotropic flow v 2 and give results based on a flow in the parton phase. Our results are consistent with the existence of a parton phase at RHIC hadronizing at a temperature of 175 MeV and a radial flow velocity of 0.55c.
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Bass, S.A., Fries, R.J., Nonaka, C. (2004). Hadronization at Rhic: Interplay of Recombination and Fragmentation. In: Greiner, W., Itkis, M.G., Reinhardt, J., Güçlü, M.C. (eds) Structure and Dynamics of Elementary Matter. NATO Science Series, vol 166. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-2705-5_17
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DOI: https://doi.org/10.1007/978-1-4020-2705-5_17
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