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

被引：37

作者：

Ratti, Claudia ^{[1
,5
]}

Borsanyi, Szabolcs ^{[1
]}

Fodor, Zoltan ^{[1
,2
,3
]}

Hoelbling, Christian ^{[1
]}

Katz, Sandor D. ^{[3
]}

Krieg, Stefan ^{[1
,4
]}

Szabo, Kalman K. ^{[1
]}

机构：

[1] Univ Wuppertal, Dept Phys, D-42119 Wuppertal, Germany

[2] Forschungszentrum Julich, D-52425 Julich, Germany

[3] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary

[4] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[5] Univ Turin, Dipartimento Fis Teor, I-10125 Turin, Italy

来源：

NUCLEAR PHYSICS A | 2011年 / 855卷 / 01期

关键词：

quark-gluon plasma; QCD thermodynamics; lattice QCD;

D O I：

10.1016/j.nuclphysa.2011.02.052

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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 (N-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.

引用

页码：253 / 256

页数：4

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