arXiv subjects
Publications and source records attributed to Victor L. Chernyak.
Content : 1) The leading twist pion wave function, 2) "Improved" QCD sum rules with non-local condensates, 3) Pion and kaon form factors and charmonium decays: theory vs experiment, 4) γ^{*}γπ^{o} - form factor, 5) The new non-local axial anomaly, 6) Cross sections γγ--> π^+π^-, K^+K^-, K_S K_S .
The "handbag" model was proposed as an alternative, at the present day energies, to the leading term QCD predictions for some hard exclusive processes. The recent precise data from the Belle Collaboration on the large angle cross sections $γγ--> ππ, KK $ allow a check of these two approaches to be performed. It is shown that the handbag model fails to describe the data from Belle, while the leading term QCD predictions are in reasonable agreement with these data