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Rapidity dependence of particle production in ultrarelativistic nuclear collisions

K. J. Eskola, K. Kajantie, P. V. Ruuskanen, K. Tuominen

hep-pharXiv:hep-ph/0204034

Abstract

We compute the rapidity dependence of particle and transverse energy production in ultrarelativistic heavy ion collisions at various beam energies and atomic numbers using the perturbative QCD + saturation model. The distribution is a broad gaussian near y=0 but the rapid increase of particle production with the beam energy will via energy conservation strongly constrain the rapidity distribution at large y.

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