The photon structure function F2 in QCD with nonlocal vacuum quark condensates
Bakulev A. P., Mikhailov S. V.
The contribution from nonlocal vacuum condensates of quark fields to the hadronic part of the photon structure function F2(x) in the operator product expansion approach to QCD has been calculated. A substantial improvement of the agreement with experimental data for the standard value of the parameter \2q={qD2q)/(qq) ^0.5 GeV2 has been obtained. © 1994 American Institute of Physics.