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Event-by-event fluctuations in heavy-ion collisions and the quark-gluon string model

A. Capella·E. G. Ferreiro·A. B. Kaidalov
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Abstract

We apply dynamical string models of heavy-ions collisions at high energies to the analysis of event-by-event fluctuations. Main attention is devoted to a new variable proposed to study "equilibration" in heavy-ions collisions. Recent results of the NA49 collaboration at CERN SPS are compared with predictions of the Quark-Gluon String Model (QGSM), which gives a good description of different aspects of multiparticle production for collisions of nucleons and nuclei. It is shown that the new observable and other results of the NA49 analysis of event-by-event fluctuations are correctly reproduced in the model. We discuss dynamical effects responsible for these fluctuations and give the predictions for p-p, p-Pb and Pb-Pb collisions at RHIC and higher energies.

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A. Capella, E. G. Ferreiro, A. B. Kaidalov. 1999-03-12. Event-by-event fluctuations in heavy-ion collisions and the quark-gluon string model. https://arxiv.org/abs/hep-ph/9903338

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