Fluctuations and Correlations in Nucleus-Nucleus Collisions within Transport Models

摘要

Particle number fluctuations and correlations in nucleus-nucleus collisionsat SPS and RHIC energies are studied within microscopic transport approaches.In this review we focus on the Hadron-String-Dynamics (HSD) andUltra-relativistic-Quantum-Molecular-Dynamics (UrQMD) models The obtainedresults are compared with the available experimental data as well as with thestatistical models and the model of independent sources. In particular the roleof the experimental centrality selection and acceptance is discussed in detailfor a variety of experimental fluctuations and correlation observables with theaim to extract information on the critical point in the $(T,\mu_B)$ plane ofstrongly interacting matter.