Hadron Resonances and Phase Threshold in Heavy Ion Collisions

Abstract

We show that a measurement of the reaction energy dependence of relative hadron resonance yields in heavy ion collisions can be used to study the phase structure of the dense QCD matter created in these collisions, and investigate the origin of the trends observed in the excitation functions of certain soft hadronic observables. We show that presence of chemical nonequilibrium in light quark abundance imparts a characteristic signature on the energy dependence of resonance yields, that differs considerably from what is expected in the equilibrium picture.

In press, Phys. Rev. C

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Cited by in corpus (10)

• Hadron Production and Phase Changes in Relativistic Heavy Ion Collisions
• Far-from-equilibrium search for the QCD critical point
• Influence of hadronic resonances on the chemical freeze-out in heavy-ion collisions
• Shear viscosity to entropy density ratio of a relativistic Hagedorn resonance gas
• Strangeness Enhancement: Challenges and Successes
• Enhanced Production of Delta(1230) and Sigma(1385) Resonances
• Thermal-model-based characterization of heavy-ion-collision systems at chemical freeze-out
• Quantifying Properties of the QCD Matter at RHIC
• Status of Strangeness-Flavor Signature of QGP
• Resonances and fluctuations in the statistical model