English

Recent results on QCD thermodynamics: lattice QCD versus Hadron Resonance Gas model

High Energy Physics - Lattice 2011-09-16 v1

Abstract

We present our most recent investigations on the QCD cross-over transition temperatures with 2+1 staggered flavours and one-link stout improvement [JHEP 1009:073, 2010]. We extend our previous two studies [Phys. Lett. B643 (2006) 46, JHEP 0906:088 (2009)] by choosing even finer lattices (NtN_t=16) and we work again with physical quark masses. All these results are confronted with the predictions of the Hadron Resonance Gas model and Chiral Perturbation Theory for temperatures below the transition region. Our results can be reproduced by using the physical spectrum in these analytic calculations. A comparison with the results of the hotQCD collaboration is also discussed.

Keywords

Cite

@article{arxiv.1012.5215,
  title  = {Recent results on QCD thermodynamics: lattice QCD versus Hadron Resonance Gas model},
  author = {Szabolcs Borsanyi and Zoltan Fodor and Christian Hoelbling and Sandor D. Katz and Stefan Krieg and Claudia Ratti and Kalman K. Szabo},
  journal= {arXiv preprint arXiv:1012.5215},
  year   = {2011}
}

Comments

4 pages, 3 figures, Presented at the 4th International Conference Hard Probes 2010