Alexander P. Bakulev

Unbiased analysis of CLEO data at NLO and the pion distribution amplitude

We discuss different QCD approaches to calculate the form factor

Global Fractional Analytic Perturbation Theory in QCD with Selected Applications

{F}^{{\ensuremath{\gamma}}^{*}\ensuremath{\gamma}\ensuremath{\pi}}{(Q}^{2})

Pion-photon transition: The New QCD frontier

of the

Comparing antithetic trends of data for the pion-photon transition form factor

{\ensuremath{\gamma}}^{*}\stackrel{\ensuremath{\rightarrow}}{\ensuremath{\gamma}}{\ensuremath{\pi}}^{0}

Lattice measurements of nonlocal quark condensates, vacuum correlation length, and pion distribution amplitude in QCD

transition giving preference to the light-cone QCD sum rules (LCSR) approach as being the most adequate. In this context we revise the previous analysis of the CLEO experimental data on

Tagging the pion quark structure in QCD

{F}^{{\ensuremath{\gamma}}^{*}\ensuremath{\gamma}\ensuremath{\pi}}{(Q}^{2})

Can we understand an auxetic pion-photon transition form factor within QCD?

by Schmedding and Yakovlev. Special attention is paid to the sensitivity of the results to the (strong radiative)

QCD sum rules with nonlocal condensates and the spacelike pion form factor

{\ensuremath{\alpha}}_{s}

Pion-photon transition form factor using light-cone sum rules: theoretical results, expectations, and a global-data fit

corrections and to the value of the twist-four coupling

Parton Skewed Distributions in the Pion and Quark-Hadron Duality

{\ensuremath{\delta}}^{2}.