English

Hagedorn States and Thermalization

Nuclear Theory 2015-05-19 v1 High Energy Physics - Phenomenology

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\eta/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+K^+/\pi^+ horn seen at AGS, SPS, and RHIC.

Keywords

Cite

@article{arxiv.1008.5075,
  title  = {Hagedorn States and Thermalization},
  author = {Jacquelyn Noronha-Hostler and Carsten Greiner},
  journal= {arXiv preprint arXiv:1008.5075},
  year   = {2015}
}

Comments

8 pages, 2 figures, conference proceeding for DM2010, International Workshop on High Density Nuclear Matter, Cape Town, South Africa 6 - 9 April, 2010

R2 v1 2026-06-21T16:06:52.715Z