Analytic QCD coupling with no power terms in UV regime

Abstract

We construct models of analytic QCD (i.e.,with the running coupling parameter free of Landau singularities) which address several problems encountered in previous analytic QCD models, among them their incompatibility with the ITEP-OPE philosophy (due to UV power terms) and too low values of the semihadronic tau decay ratio. The starting point of the approach is the construction of appropriate nonperturbative beta functions.

12 pages, 5 figures, revised version (short changes in the text, Refs.[21,22,23] are new), version as it appears in J.Phys.G37,075001

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Cited by in corpus (21)

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• QCDMAPT: program package for Analytic approach to QCD
• Reconciling the analytic QCD with the ITEP operator product expansion philosophy
• Modified Contour-Improved Perturbation Theory
• Simple analytic QCD model with perturbative QCD behavior at high momenta
• Operator Product Expansion with analytic QCD in tau decay physics
• Hadronic vacuum polarization function within dispersive approach to QCD
• Calculation of binding energies and masses of quarkonia in analytic QCD models
• Electron-positron annihilation into hadrons at the higher-loop levels
• Techniques of evaluation of QCD low-energy physical quantities with running coupling with infrared fixed point
• How to perform QCD analysis of DIS in Analytic Perturbation Theory
• Lattice-motivated holomorphic nearly perturbative QCD
• Explicit form of the R-ratio of electron-positron annihilation into hadrons
• Inclusive tau lepton hadronic decay in vector and axial-vector channels within dispersive approach to QCD
• Perturbative QCD in acceptable schemes with holomorphic coupling
• On applications of Mathematica Package "FAPT" in QCD
• pQCD running couplings finite and monotonic in the infrared: when do they reflect the holomorphic properties of spacelike observables?