As is known from QED, a possible solution to the ghost-pole trouble can be obtained by imposing the Q^2-analyticity imperative. Here, the pole is compensated by the \alpha non-analytic contribution that results in finite coupling renormalization. We apply this idea to QCD and arrive at the Q^2 analytic \bar{\alpha}_s(Q). This solution corresponds to perturbation expansion, obeys AF and, due to non-perturbative contribution, has a regular IR behaviour. It does not contain any adjustable parameter and has a finite IR limit \bar{\alpha}_s(0) which depends only on group symmetry factors. In the one-loop approximation it is equal to 4\pi/\beta_0 \simeq 1.40\ and turns out to be surprisingly stable with respect to higher order corrections. On the...
Ayala C, Cvetic G, Kögerler R, Kondrashuk I. Nearly perturbative lattice-motivated QCD coupling with...
We investigate a new ``renormalization invariant analytic formulation'' of calculations in quantum c...
Recent progress in the solution of Schwinger-Dyson equations (SDE), as well as lattice simulation of...
We discuss the new model expression $\bar{\alpha}_{an}(Q~2)$ recently obtained for the QCD running c...
An analytic ghost-free model for the QCD running coupling a(Q(^2)) is proposed. It is constructed fr...
It is shown that analytic properties of standard QCD perturbation theory contradict known spectral p...
We further develop the approach recently used to construct an analytic ghost-free model for the QCD ...
An elegant and more precise formula for the 3-loop perturbative QCD coupling is discussed. It improv...
The issue is the expediency of the QCD notions use in the low energy region down to the confinement ...
In the framework of the analytic approach to Quantum Chromodynamics a new model for the strong runni...
We study the impact on chiral symmetry breaking of a recently developed model for the QCD analytic i...
Analytic versions of QCD are those whose coupling αs(Q²) does not have the unphysical Landau singula...
Abstract. We outline here the motivation for the existence of analytic QCD models, i.e., QCD framewo...
Technical aspects of the Shirkov--Solovtsov's analytic perturbation theory (APT) are considered. We ...
The renormalization group method enables one to improve the properties of the QCD perturbative power...
Ayala C, Cvetic G, Kögerler R, Kondrashuk I. Nearly perturbative lattice-motivated QCD coupling with...
We investigate a new ``renormalization invariant analytic formulation'' of calculations in quantum c...
Recent progress in the solution of Schwinger-Dyson equations (SDE), as well as lattice simulation of...
We discuss the new model expression $\bar{\alpha}_{an}(Q~2)$ recently obtained for the QCD running c...
An analytic ghost-free model for the QCD running coupling a(Q(^2)) is proposed. It is constructed fr...
It is shown that analytic properties of standard QCD perturbation theory contradict known spectral p...
We further develop the approach recently used to construct an analytic ghost-free model for the QCD ...
An elegant and more precise formula for the 3-loop perturbative QCD coupling is discussed. It improv...
The issue is the expediency of the QCD notions use in the low energy region down to the confinement ...
In the framework of the analytic approach to Quantum Chromodynamics a new model for the strong runni...
We study the impact on chiral symmetry breaking of a recently developed model for the QCD analytic i...
Analytic versions of QCD are those whose coupling αs(Q²) does not have the unphysical Landau singula...
Abstract. We outline here the motivation for the existence of analytic QCD models, i.e., QCD framewo...
Technical aspects of the Shirkov--Solovtsov's analytic perturbation theory (APT) are considered. We ...
The renormalization group method enables one to improve the properties of the QCD perturbative power...
Ayala C, Cvetic G, Kögerler R, Kondrashuk I. Nearly perturbative lattice-motivated QCD coupling with...
We investigate a new ``renormalization invariant analytic formulation'' of calculations in quantum c...
Recent progress in the solution of Schwinger-Dyson equations (SDE), as well as lattice simulation of...