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

页码：5584 / 5595

页数：12

共 49 条

[1] LATTICE QCD ON SMALL COMPUTERS [J].

ALFORD, M ;

DIMM, W ;

LEPAGE, GP ;

HOCKNEY, G ;

MACKENZIE, PB .

PHYSICS LETTERS B, 1995, 361 (1-4) :87-94

[2] Improving lattice quark actions [J].

Alford, M ;

Klassen, TR ;

Lepage, GP .

NUCLEAR PHYSICS B, 1997, 496 (1-2) :377-407

[3] QUENCHED LIGHT HADRON MASS-SPECTRUM AND DECAY CONSTANTS - THE EFFECTS OF O(A) IMPROVEMENT AT BETA=6.2 [J].

ALLTON, CR ;

SACHRAJDA, CT ;

BAXTER, RM ;

BOOTH, SP ;

BOWLER, KC ;

COLLINS, S ;

HENTY, DS ;

KENWAY, RD ;

MCNEILE, C ;

PENDLETON, BJ ;

RICHARDS, DG ;

SIMONE, JN ;

SIMPSON, AD ;

MCKERRELL, A ;

MICHAEL, C ;

PRISZNYAK, M .

NUCLEAR PHYSICS B, 1993, 407 (02) :331-355

[4] FINITE-SIZE EFFECTS OF HADRON MASSES IN LATTICE QCD - A COMPARATIVE-STUDY FOR QUENCHED AND FULL QCD SIMULATIONS [J].

AOKI, S ;

UMEMURA, T ;

FUKUGITA, M ;

ISHIZUKA, N ;

MINO, H ;

OKAWA, M ;

UKAWA, A .

PHYSICAL REVIEW D, 1994, 50 (01) :486-494

[5] SU(3) latent heat and surface tension from tree level and tadpole improved actions [J].

Beinlich, B ;

Karsch, F ;

Peikert, A .

PHYSICS LETTERS B, 1997, 390 (1-4) :268-274

[6] Improved actions for QCD thermodynamics on the lattice [J].

Beinlich, B ;

Karsch, F ;

Laermann, E .

NUCLEAR PHYSICS B, 1996, 462 (2-3) :415-433

[7] FINITE-SIZE AND QUARK MASS EFFECTS ON THE QCD SPECTRUM WITH 2 FLAVORS [J].

BERNARD, C ;

BLUM, T ;

DEGRAND, TA ;

DETAR, C ;

GOTTLIEB, S ;

KRASNITZ, A ;

SUGAR, RL ;

TOUSSAINT, D .

PHYSICAL REVIEW D, 1993, 48 (09) :4419-4434

[8] NATURE OF THE THERMAL PHASE-TRANSITION WITH WILSON QUARKS [J].

BERNARD, C ;

DEGRAND, TA ;

HASENFRATZ, A ;

DETAR, C ;

GOTTLIEB, S ;

KARKKAINEN, L ;

TOUSSAINT, D ;

SUGAR, RL .

PHYSICAL REVIEW D, 1994, 49 (07) :3574-3588

[9] QCD THERMODYNAMICS WITH 2 FLAVORS OF WILSON QUARKS AT NT=6 [J].

BERNARD, C ;

OGILVIE, MC ;

DEGRAND, TA ;

DETAR, C ;

GOTTLIEB, S ;

KRASNITZ, A ;

SUGAR, RL ;

TOUSSAINT, D .

PHYSICAL REVIEW D, 1992, 46 (10) :4741-4748

[10] Finite temperature lattice QCD with clover fermions [J].

Bernard, C ;

Blum, T ;

DeGrand, TA ;

DeTar, C ;

Gottlieb, S ;

Heller, UM ;

McNeile, C ;

Rummukainen, K ;

Sugar, B ;

Toussaint, D ;

Wingate, M .

NUCLEAR PHYSICS B, 1997, :446-448

← 1 2 3 4 5 →