The N-t=6 equation of state for two flavor QCD

被引：6

作者：

Bernard, C

Blum, T

DeTar, CE

Gottlieb, S

Heller, UM

Hetrick, JE

Karkkainen, L

Rummukainen, K

Sugar, RL

Toussaint, D

Wingate, M

机构：

[1] UNIV ARIZONA, DEPT PHYS, TUCSON, AZ 85721 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, SUPERCOMP COMPUTAT RES INST, TALLAHASSEE, FL 32306 USA

[5] UNIV CALIF SANTA BARBARA, DEPT PHYS, SANTA BARBARA, CA 93106 USA

[6] UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA

来源：

NUCLEAR PHYSICS B | 1996年

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0920-5632(96)00110-7

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We improve the calculation of the equation of state for two flavor QCD by simulating on N-t = 6 lattices at appropriate values of the couplings for the deconfinement/chiral symmetry restoration crossover. For am(q) = 0.0125 the energy density rises rapidly to approximately 1 GeV/fm(3) just after the crossover (m(pi)/m(rho) approximate to 0.4 at this point). Comparing with our previous result for N-t = 4 [1], we find large finite N-t corrections as expected from free field theory on finite lattices. We also provide formulae for extracting the speed of sound from the measured quantities.

引用

页码：503 / 510

页数：8

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