Transverse radial expansion in nuclear collisions and two particle correlations

Abstract

At the very first stage of an ultra-relativistic nucleus-nucleus collision new particles are produced in individual nucleon-nucleon collisions. In the transverse plane, all particles from a single $NN$ collision are initially located at the same position. The subsequent thermalization and transverse radial expansion of the system create strong position-momentum correlations and lead to characteristic rapidity, transverse momentum, and azimuthal correlations among the produced particles.

arXiv commentAs accepted for publication in Phys. Lett. B. The discussion is slightly extended. The linear scale in Fig.2 changed to log scale. No other changes

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