QCD transition temperature: Full staggered result

Szabolcs Borsányi, Z. Fodor, Christian Hoelbling, S. Katz, Stefan Krieg, Claudia Ratti, Kálmán K. Szabó

Research output: Contribution to journalConference article

Abstract

We conclude our investigations on the QCD cross-over transition temperatures with 2+1 staggered flavours and one-link stout improvement. We extend our previous two studies [Phys. Lett. B643 (2006) 46, JHEP 0906:088 (2009)] by choosing even finer lattices (Nt=16) and we work again with physical quark masses. These new results [for details see JHEP 1009:073,2010] support our earlier findings. We compare them with the published results of the hotQCD collaboration. 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. The findings of the hotQCD collaboration can be recovered only by using a distorted spectrum. This analysis provides a simple explanation for the observed discrepancy in the transition T between our and the hotQCD collaborations.

Original languageEnglish
JournalProceedings of Science
Volume105
Publication statusPublished - Jan 1 2010
Event28th International Symposium on Lattice Field Theory, Lattice 2010 - Villasimius, Sardinia, Italy
Duration: Jun 14 2010Jun 19 2010

ASJC Scopus subject areas

  • General

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    Borsányi, S., Fodor, Z., Hoelbling, C., Katz, S., Krieg, S., Ratti, C., & Szabó, K. K. (2010). QCD transition temperature: Full staggered result. Proceedings of Science, 105.