Freeze-Out Parameters: Lattice Meets Experiment

被引：157

作者：

Borsanyi, S. ^{[1
]}

Fodor, Z. ^{[1
,2
,3
]}

Katz, S. D. ^{[2
,4
]}

Krieg, S. ^{[1
,3
]}

Ratti, C. ^{[5
,6
]}

Szabo, K. K. ^{[1
]}

机构：

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

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

[3] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

[4] MTA ELTE Lendulet Lattice Gauge Theory Res Grp, H-1117 Budapest, Hungary

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

[6] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.111.062005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present our results for ratios of higher order fluctuations of electric charge as functions of the temperature. These results are obtained in a system of 2 + 1 quark flavors at physical quark masses and continuum extrapolated. We compare them to preliminary data on higher order moments of the net electric charge distribution from the STAR collaboration. This allows us to determine the freeze-out temperature and chemical potential from first principles. We also show continuum-extrapolated results for ratios of higher order fluctuations of baryon number. These will allow us to test the consistency of the approach, by comparing them to the corresponding experimental data (once they become available) and thus, extracting the freeze-out parameters in an independent way.

引用

页数：5

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