The crossover line in the (T, μ)-phase diagram of QCD

被引：0
|
作者：
Guenther, Jana N. [1 ,2 ]
Borsanyi, Szabolcs [2 ]
Fodor, Zoltan [2 ,3 ,4 ,5 ]
Kara, Ruben [2 ]
Katz, Sandor D. [4 ]
Parotto, Paolo [2 ]
Pasztor, Attila [2 ]
Ratti, Claudia [6 ]
Szabo, Kalman K. [2 ,3 ]
机构：
[1] Univ Regensburg, Dept Phys, Univ Str 31, D-93053 Regensburg, Germany
[2] Univ Wuppertal, Dept Phys, Gaussstr 20, D-42119 Wuppertal, Germany
[3] Forschungszentrum Julich, Julich Supercomp, D-52425 Julich, Germany
[4] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary
[5] Univ Calif San Diego, Phys Dept, San Diego, CA 92093 USA
[6] Univ Houston, Dept Phys, Houston, TX 77204 USA
来源：
NUCLEAR PHYSICS A | 2021年 / 1005卷
基金：
美国国家科学基金会;
关键词：
lattice QCD; phase diagram; finite density;
D O I：
10.1016/j.nuclphysa.2020.121782
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：
An efficient way to study the QCD phase diagram at small finite density is to extrapolate thermodynamical observables from imaginary chemical potential. The phase diagram features a crossover line starting from the transition temperature already determined at zero chemical potential. In this work we focus on the Taylor expansion of this line up to mu(4) contributions. We present the continuum extrapolation of the crossover temperature based on different observables at several lattice spacings.
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页数：4
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