Influence of nonperturbative effects on the violation of scaling in neutrino interactions at O2=2.0-100.0 GeV2
Ammosov V. V., Burtovoi V. S., Gapienko V. A., Gapienko G. S. , Denisov A. G., Zaets V. G., Klyukhin V. I., Koreshev V. I. , Pitukhin P. V. , Sirotenko V. I. , Usubov Z. U. , Asratyan A. E., Gorichev P. A., Kruchinin V. G., Kubantsev M. A., Makhlyueva I. V., Fedotov A. V. , Shevchenko V. G., Shekelyan V. I.
The contributions of perturbative and nonperturbative effects to the violation of scaling are analyzed jointly for the structure functions of the nucleon measured in neutrino interactions at 2.0 < Q 2 < 100.0 GeV2. The value Лш = 0.50 ± 0.11 GeV is found for the constant of quantum chromodynamics (the error is statistical). The contribution of the nonperturbative effects is negative, and its л: dependence is described well by x2/( 1-х).