157 citations · 1.8k across the 70 of their papers we have counts for
5 papers · 2 filters
End-point behavior of the pion distribution amplitude
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
We discuss the end-point behavior of the pion distribution amplitude (DA) and calculate its slope using QCD sum rules with nonlocal condensates. This is done in terms of the standa…
New perturbation theory representation of the conformal symmetry breaking effects in gauge quantum field theory models
A. L. Kataev, S. V. Mikhailov
We propose a hypothesis on the detailed structure for the representation of the conformal symmetry breaking term in the basic Crewther relation generalized in the perturbation theo…
Endpoint behavior of the pion distribution amplitude in QCD sum rules with nonlocal condensates
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
Starting from the QCD sum rules with nonlocal condensates for the pion distribution amplitude, we derive another sum rule for its derivative and its "integral" derivatives---define…
Pion Distribution Amplitude and Photon-to-Pion Transition Form Factor in QCD
Alexander P. Bakulev, S. V. Mikhailov, N. G. Stefanis
We discuss the status of the pion distribution amplitude (DA) in connection with QCD sum rules and experimental data on the transition form factor. Contents: (a) Pio…
Higher-order QCD perturbation theory in different schemes: From FOPT to CIPT to FAPT
A. P. Bakulev, S. V. Mikhailov, N. G. Stefanis
Results on the resummation of non-power-series expansions of the Adler function of a scalar, , and a vector, , correlator are presented within fractional analytic perturb…