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Transition from in-plane to out-of-plane azimuthal enhancement in Au+Au collisions

A. Andronic·G. Stoicea·M. Petrovici·FOPI Collaboration
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Abstract

The incident energy at which the azimuthal distributions in semi-central heavy ion collisions change from in-plane to out-of-plane enhancement, E_tran, is studied as a function of mass of emitted particles, their transverse momentum and centrality for Au+Au collisions. The analysis is performed in a reference frame rotated with the sidewards flow angle, Theta_flow, relative to the beam axis. A systematic decrease of E_tran as function of mass of the reaction products, their transverse momentum and collision centrality is evidenced. The predictions of a microscopic transport model (IQMD) are compared with the experimental results.

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A. Andronic, G. Stoicea, M. Petrovici, FOPI Collaboration. 2000-08-09. Transition from in-plane to out-of-plane azimuthal enhancement in Au+Au collisions. https://doi.org/10.1016/s0375-9474(00)00377-8

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