Abstract
In view of the planning experiments for collisions of light nuclei at RHIC the flow coefficients for O-O, Al-AL and Cu-Cu collisions are studied in the color string percolation model. Our results for $v_2$ are somewhat smaller than predicted by other groups although with the same dependence on centrality. Our obtained $v_3$ lie between predictions of other groups.
Highlights
A remarkable discovery at collider experiments has been observation of strong azimuthal correlations in heavy nuclei collisions [1,2,3,4,5,6]. It can be characterized by the nonzero flow coefficients vn governing the correlation function of the azimuthal distribution of secondaries as
Its latest development and applications are described in the review paper [20]. As mentioned in this model, particle creation and production of azimuthal asymmetry proceed simultaneously. Both are the results of the formation of the gluon field by color strings
It is trivial to raise our flows somewhat by increasing the parameter κ. This would contradict our physical picture in which κ is determined by the quenching of a particle passing through the gluon field independent of such external parameters as the atomic number of participants and their energy
Summary
A remarkable discovery at collider experiments has been observation of strong azimuthal correlations in heavy nuclei collisions [1,2,3,4,5,6]. This phenomenon can be interpreted in terms of formation of a fireball in the overlap of the colliding nuclei, consisting of the strongly interacting hot quark-gluon plasma, which subsequently freezes, hadronizes, and passes into the observed secondary hadrons The dynamics of this transition seems to be well described in the hydrodynamical approach, which relates the final spatial anisotropy to that of the initial state. It gives the flow coefficients for light nuclei on the same level and with the same centrality dependence as the two mentioned sophisticated approaches It seems that the complicated concrete mechanisms inherent in the latter are not very essential for the final results, which apparently depend only on the overall basic dynamical structure, correctly described by the color string model
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