منابع مشابه
Gauge-invariant effective fields in QCD and the strong charge screening
Gauge-invariant fields in hadrons are defined through the Wilson loop and written in terms of gauge-invariant field correlators. Dynamical equations for fields are considered. It is shown that at small distances in the leading order αs aproximation they correspond to Maxwell equations with electric current and reproduce in particular the color-Coulombic OGE potential. At larger distances nonabe...
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We study the relation between instantons and monopoles in the abelian gauge. First, we investigate the monopole in the multi-instanton solution in the continuum Yang-Mills theory using the Polyakov gauge. At a large instanton density, the monopole trajectory becomes highly complicated, which can be regarded as a signal of monopole condensation. Second, we study instantons and monopoles in the S...
متن کاملInfrared finite effective charge of QCD
A. C. Aguilar,a D. Binosib and J. Papavassiliou∗a aDepartamento de Física Teórica and IFIC, Centro Mixto, Universidad de Valencia–CSIC E-46100, Burjassot, Valencia, Spain b European Centre for Theoretical Studies in Nuclear Physics and Related Areas (ECT*), Villa Tambosi, Strada delle Tabarelle 286, I-38050 Villazzano (TN), Italy. E-mail: [email protected],[email protected], Joannis.Papavassilio...
متن کاملQCD in the axial gauge
We review a recent attempt to deal with non-perturbative features of QCD by analytical means, using a manifestly gauge invariant, canonical approach.
متن کاملCorrelation of the Topological Charge in Pure SU ( 3 ) Gauge Theory and in QCD
We study the spatial correlator of the topological charge density operator in pure SU(3) gauge theory and in two flavor QCD. We show that the data for distances up to about 1 fm is consistent with a vacuum consisting of individual instantons and closely bound pairs. The percentage of paired objects is twice as large on the dynamical configurations than on the pure gauge ones, implying increased...
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ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1997
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(97)00179-x