Hagedorn states and thermalization

J. Noronha-Hostler, C. Greiner

Research output: Contribution to journalArticlepeer-review

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 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++ horn seen at AGS, SPS, and RHIC.

Original languageEnglish (US)
Pages (from-to)831-837
Number of pages7
JournalPhysics of Particles and Nuclei Letters
Volume8
Issue number8
DOIs
StatePublished - Dec 1 2011
Externally publishedYes

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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