Meson screening masses in (2+1)-flavor QCD

被引：60

作者：

Bazavov, A. ^{[1
,2
]}

Dentinger, S. ^{[3
]}

Ding, H-T ^{[4
,5
]}

Hegde, P. ^{[6
]}

Kaczmarek, O. ^{[3
,4
,5
]}

Karsch, F. ^{[3
]}

Laermann, E. ^{[3
]}

Lahiri, Anirban ^{[3
]}

Mukherjee, Swagato ^{[7
]}

Ohno, H. ^{[8
]}

Petreczky, P. ^{[7
]}

Thakkar, R. ^{[6
]}

Sandmeyer, H. ^{[3
]}

Schmidt, C. ^{[3
]}

Sharma, S. ^{[9
]}

Steinbrecher, P. ^{[7
]}

机构：

[1] Michigan State Univ, Dept Computat Math Sci & Engn, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Univ Bielefeld, Fak Phys, D-33615 Bielefeld, Germany

[4] Cent China Normal Univ, Minist Educ, Key Lab Quark & Lepton Phys, Wuhan 430079, Hubei, Peoples R China

[5] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Hubei, Peoples R China

[6] Indian Inst Sci, Ctr High Energy Phys, Bangalore 560012, Karnataka, India

[7] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA

[8] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[9] Inst Math Sci, Dept Theoret Phys, Chennai 600113, Tamil Nadu, India

来源：

PHYSICAL REVIEW D | 2019年 / 100卷 / 09期

基金：

中国国家自然科学基金; 美国国家科学基金会;

关键词：

HIGH-TEMPERATURE PHASE; HADRONIC SPECTRUM; SYMMETRY;

D O I：

10.1103/PhysRevD.100.094510

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present lattice QCD results for mesonic screening masses in the temperature range 140 MeV less than or similar to T less than or similar to 2500 MeV. Our calculations were carried out using (2 + 1) flavors of the highly improved staggered quark action, with a physical value for the strange quark mass and two values of the light quark mass corresponding to pion masses of 160 and 140 MeV. Continuum-extrapolated results were obtained using calculations with a variety of lattice spacings corresponding to temporal lattice extents N-tau = 6-16. We discuss the implications of these results for the effective restoration of various symmetries in the high temperature phase of QCD, as well as the approach toward the perturbative limit.

引用

页数：16

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