S. V. Mikhailov

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

We discuss different QCD approaches to calculate the form factor

Virtualities of Quarks and Gluons in QCD Vacuum and Nonlocal Condensates within Single Instanton Approximation

{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

Gluon field strength correlation functions within a constrained instanton model

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

Tagging the pion quark structure in QCD

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

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

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

Systematic estimation of theoretical uncertainties in the calculation of the pion-photon transition form factor using light-cone sum rules

corrections and to the value of the twist-four coupling

Deep inside the pion. Reconciling QCD theory with data

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