TOPOLOGICAL SUSCEPTIBILITY IN LATTICE QCD WITH DYNAMICAL QUARKS

被引：20
|
作者：
KURAMASHI, Y
FUKUGITA, M
MINO, H
OKAWA, M
UKAWA, A
机构：
[1] UNIV TSUKUBA,INST PHYS,TSUKUBA,IBARAKI 305,JAPAN
[2] YAMANASHI UNIV,FAC ENGN,KOFU,YAMANASHI 400,JAPAN
[3] KYOTO UNIV,YUKAWA INST THEORET PHYS,KYOTO 606,JAPAN
来源：
PHYSICS LETTERS B | 1993年 / 313卷 / 3-4期
关键词：
D O I：
10.1016/0370-2693(93)90013-8
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Topological susceptibility is studied in lattice QCD with two flavors of dynamical Kogut-Susskind quarks on a 20(4) and an 8(3) X 16 lattice employing the cooling method. The topological susceptibility is strongly suppressed by the presence of dynamical quarks, and it is consistent with zero for the zero quark mass limit. Furthermore, we find a linear m(q) dependence of the topological susceptibility in the chirally broken phase, and even stronger suppression of topological fluctuations in the chirally symmetric phase.
引用
收藏
页码：425 / 429
页数：5
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