Role of centre vortices in dynamical mass generation

被引：12

作者：

Leinweber, Derek B. ^{[1
]}

Bowman, Patrick O.

Heller, Urs M.

Kusterer, Daniel-Jens

Langfeld, Kurt

Williams, Anthony G.

机构：

[1] Univ Adelaide, Special Res Ctr Subatom Struc Matter, Adelaide, SA 5005, Australia

[2] Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia

[3] Indiana Univ, Ctr Nucl Theory, Bloomington, IN 47408 USA

[4] Amer Phys Soc, Ridge, NY 11961 USA

[5] Univ Tubingen, Inst Theoret Phys, D-72076 Tubingen, Germany

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2006年 / 161卷

基金：

澳大利亚研究理事会;

关键词：

D O I：

10.1016/j.nuclphysbps.2006.08.065

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：

The mass and renormalization functions of the nonperturbative quark propagator are studied in SU(3) gauge field theory with a Symanzik-improved gluon action and the AsqTad fermion action. Centre vortices in the gauge field are identified by fixing to maximal centre gauge. The role of centre vortices in dynamical mass generation is explored by removing centre vortices from the gauge fields and studying the associated changes in the quark propagator. We find that dynamical mass generation survives in the vortex-removed SU(3) gauge field theory despite the vanishing of the string tension and suppression of the gluon propagator in the infrared suggesting the possibility of decoupling dynamical mass generation from confinement.

引用

页码：130 / 135

页数：6

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