Hagedorn states and thermalization

J. Noronha-Hostler; C. Greiner

doi:10.1134/S1547477111080139

Hagedorn states and thermalization

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Abstract

In recent years Hagedorn states have been used to explain the physics close to the critical temperature within a hadron gas. Because of their large decay widths these massive resonances lower η/s to near the AdS/CFT limit within the hadron gas phase. A comparison of the Hagedorn model to recent lattice results is made and it is found that for both T_c = 176 MeV and T_c = 196 MeV, the hadrons can reach chemical equilibrium almost immediately, well before the chemical freeze-out temperatures found in thermal fits for a hadron gas without Hagedorn states. In this paper we also observe the effects of Hagedorn States on the K⁺/π⁺ horn seen at AGS, SPS, and RHIC.

Original language	English (US)
Pages (from-to)	831-837
Number of pages	7
Journal	Physics of Particles and Nuclei Letters
Volume	8
Issue number	8
DOIs	https://doi.org/10.1134/S1547477111080139
State	Published - Dec 1 2011
Externally published	Yes

ASJC Scopus subject areas

Radiation
Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics
Radiology Nuclear Medicine and imaging

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