Landau gauge gluon and ghost propagators in the refined Gribov-Zwanziger framework in 3 dimensions

被引：61

作者：

Dudal, D. ^{[1
,2
]}

Gracey, J. A. ^{[3
]}

Sorella, S. P. ^{[4
]}

Vandersickel, N. ^{[2
]}

Verschelde, H. ^{[2
]}

机构：

[1] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[2] Univ Ghent, Dept Math Phys & Astron, B-9000 Ghent, Belgium

[3] Univ Liverpool, Dept Math Sci, Div Theoret Phys, Liverpool L69 3BX, Merseyside, England

[4] Univ Estado Rio de Janeiro, Inst Fis, Dept Fis Teor, BR-20550013 Rio De Janeiro, Brazil

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 12期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevD.78.125012

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In previous works, we have constructed a refined version of the Gribov-Zwanziger action in 4 dimensions, by taking into account a novel dynamical effect. In this paper, we explore the 3-dimensional case. Analogously to 4 dimensions, we obtain a ghost propagator behaving like 1/p(2) in the infrared, while the gluon propagator reaches a finite nonvanishing value at zero momentum. Simultaneously, a clear violation of positivity by the gluon propagator is also found. This behavior of the propagators turns out to be in agreement with the recent numerical simulations.

引用

页数：22

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