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Violation of energy-per-hadron scaling in a resonance matter

L. Bravina·Amand Faessler·C. Fuchs·Z. -D. Lu·E. Zabrodin
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Abstract

Yields of hadrons, their average masses and energies per hadron at the stage of chemical freeze-out in (ultra)relativistic heavy-ion collisions are analyzed within the statistical model. The violation of the scaling / = 1 GeV observed in Au+Au collisions at $\sqrt{s}$ = 130 AGeV is linked to the formation of resonance-rich matter with a considerable fraction of baryons and antibaryons. The rise of the energy-per-hadron ratio in baryon-dominated matter is discussed. A violation of the scaling condition is predicted for a very central zone of heavy-ion collisions at energies around 40 AGeV.

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L. Bravina, Amand Faessler, C. Fuchs, Z. -D. Lu, E. Zabrodin. 2002-06-05. Violation of energy-per-hadron scaling in a resonance matter. https://doi.org/10.1103/physrevc.66.014906

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