Model Independent Determination of the Gluon Condensate in Four Dimensional SU(3) Gauge Theory

被引：48

作者：

Bali, Gunnar S. ^{[1
,2
]}

Bauer, Clemens ^{[1
]}

Pineda, Antonio ^{[3
]}

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

[3] Univ Autonoma Barcelona, Fis Teor Grp, E-08193 Barcelona, Spain

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 09期

关键词：

QUARK EFFECTIVE THEORY; LATTICE QCD; EXPANSION; MASS; RENORMALIZATION; MESONS; ENERGY; SCALE;

D O I：

10.1103/PhysRevLett.113.092001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We determine the nonperturbative gluon condensate of four-dimensional SU(3) gauge theory in a model-independent way. This is achieved by carefully subtracting high-order perturbation theory results from nonperturbative lattice QCD determinations of the average plaquette. No indications of dimension-two condensates are found. The value of the gluon condensate turns out to be of a similar size as the intrinsic ambiguity inherent to its definition. We also determine the binding energy of a B meson in the heavy quark mass limit.

引用

页数：5

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