In recent years, Hagedorn states have been used to explain the equilibrium and transport properties of a hadron gas close to the QCD critical temperature. These massive resonances are shown to lower η/s to near the AdS/CFT limit close to the phase transition. A comparison of the Hagedorn model to recent lattice results is made and it is found that 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.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - Jan 1 2011|
|Event||49th International Winter Meeting on Nuclear Physics, Bormio 2011 - Bormio, Italy|
Duration: Jan 24 2011 → Jan 28 2011
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