TY - JOUR
T1 - Hagedorn states and thermalization
AU - Noronha-Hostler, J.
AU - Greiner, C.
N1 - Funding Information:
This work was supported by the Helmholtz Inter national Center for FAIR within the framework of the LOEWE program (Landes Offensive zur Entwicklung Wissenschaftlich okonomischer Exzellenz) launched by the State of Hesse.
PY - 2011/12/1
Y1 - 2011/12/1
N2 - 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 Tc = 176 MeV and Tc = 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.
AB - 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 Tc = 176 MeV and Tc = 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.
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U2 - 10.1134/S1547477111080139
DO - 10.1134/S1547477111080139
M3 - Article
AN - SCOPUS:82955201718
VL - 8
SP - 831
EP - 837
JO - Physics of Particles and Nuclei Letters
JF - Physics of Particles and Nuclei Letters
SN - 1547-4771
IS - 8
ER -