Hybrid model constrains STAR intermittency data to small, nearly energy-independent critical-like fractions, indicating limited critical-point contribution.
Global observables and secondary interactions in central Au+Au reactions at $\sqrt{s}=200$ AGeV
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abstract
The Ultra-relativistic Quantum Molecular Dynamics model (UrQMD) is used to study global observables in central reactions of Au+Au at $\sqrt{s}=200$ AGeV (RHIC). Strong stopping governed by massive particle production is predicted if secondary interactions are taken into account. The underlying string dynamics and the early hadronic decoupling implies only small transverse expansion rates. However, rescattering with mesons is found to act as a source of pressure leading to additional flow of baryons and kaons, while cooling down pions.
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Understanding the Intermittency Signal in RHIC-STAR Data through Modeling
Hybrid model constrains STAR intermittency data to small, nearly energy-independent critical-like fractions, indicating limited critical-point contribution.