Topology of full QCD

被引：34

作者：

de Forcrand, P ^{[1
]}

Perez, MG

Hetrick, JE

Stamatescu, IO

机构：

[1] ETH Zentrum, Swiss Ctr Sci Comp, CH-8092 Zurich, Switzerland

[2] Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany

[3] Univ Pacific, Dept Phys, Stockton, CA 95211 USA

[4] FEST, D-69118 Heidelberg, Germany

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷

关键词：

D O I：

10.1016/S0920-5632(97)00830-X

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 study topological properties of SU(3) gauge theory using improved cooling. In the absence of fermions. we measure a topological susceptibility of (182(8) MeV)(4) and an instanton size similar to 0.6 fm. In the presence of light staggered fermions and across the chiral transition, the susceptibility drops in a manner consistent with the quenched case, and the instanton size changes little. No significant formation of bound instanton-antiinstanton pairs is observed, in particular not along the Euclidean time direction for T > T-c.

引用

页码：549 / 551

页数：3

共 5 条

[1] Topological susceptibility at zero and finite T in SU(3) Yang-Mills theory [J].

Alles, B ;

DElia, M ;

DiGiacomo, A .

NUCLEAR PHYSICS B, 1997, 494 (1-2) :281-292

[2] Two-flavor staggered fermion thermodynamics at N-t=12 [J].

Bernard, C ;

Blum, T ;

DeTar, C ;

Gottlieb, S ;

Rummukainen, K ;

Heller, UM ;

Hetrick, J ;

Toussaint, D ;

Sugar, RL .

PHYSICAL REVIEW D, 1996, 54 (07) :4585-4594

[3] Topology of the SU(2) vacuum: A lattice study using improved cooling [J].

deForcrand, P ;

Perez, MG ;

Stamatescu, IO .

NUCLEAR PHYSICS B, 1997, 499 (1-2) :409-449

[4]

SCHAFER T, 1997, REV MOD PHYS

[5] MONOPOLES AND CONFINEMENT [J].

SMIT, J ;

VANDERSIJS, AJ .

NUCLEAR PHYSICS B, 1991, 355 (03) :603-648

← 1 →