TL;DR
This paper revisits the Hagedorn temperature, confirming its value at 174 MeV, and explores thermodynamic properties of the resonance hadron gas across various chemical potentials, aligning with experimental freeze-out data.
Contribution
It provides a precise determination of the Hagedorn temperature and applies it to calculate thermodynamic quantities in the resonance hadron gas model over a range of baryon chemical potentials.
Findings
Hagedorn temperature confirmed at 174 MeV
Thermodynamic quantities calculated across chemical potentials
Results consistent with previous studies
Abstract
The Hagedorn temperature, T_H is determined from the number of hadronic resonances including all mesons and baryons. This leads to a stable result T_H = 174 MeV consistent with the critical and the chemical freeze-out temperatures at zero chemical potential. We use this result to calculate the speed of sound and other thermodynamic quantities in the resonance hadron gas model for a wide range of baryon chemical potentials following the chemical freeze-out curve. We compare some of our results to those obtained previously in other papers.
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