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QCD thermodynamics with an improved lattice action

被引：40
作者：
Bernard, C
Hetrick, JE
DeGrand, T
Wingate, M
DeTar, C
Gottlieb, S
Heller, UM
Rummukainen, K
Toussaint, D
Sugar, RL
机构：
[1] UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA
[2] UNIV UTAH, DEPT PHYS, SALT LAKE CITY, UT 84112 USA
[3] INDIANA UNIV, DEPT PHYS, BLOOMINGTON, IN 47405 USA
[4] FLORIDA STATE UNIV, SCRI, TALLAHASSEE, FL 32306 USA
[5] UNIV BIELEFELD, FAK PHYS, D-33615 BIELEFELD, GERMANY
[6] UNIV ARIZONA, DEPT PHYS, TUCSON, AZ 85721 USA
[7] UNIV CALIF SANTA BARBARA, DEPT PHYS, SANTA BARBARA, CA 93106 USA
来源：
PHYSICAL REVIEW D | 1997年 / 56卷 / 09期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevD.56.5584
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have investigated QCD with two flavors of degenerate fermions using the Symanzik-improvement program for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an N-t=4 lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential, We find that this action reduces lattice artifacts present in thermodynamics with the standard Wilson (gauge and fermion) actions. However, comparisons between improved Wilson and Kogut-Susskind actions show some disagreement.
引用
收藏
页码：5584 / 5595
页数：12
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