"Fixed point" QCD Analysis of the CCFR Data on Deep Inelastic Neutrino- Nucleon Scattering

Abstract

The results of LO \it {Fixed Point} QCD (FP - QCD) analysis of the CCFR data for the nucleon structure function $x{F}_3(x,Q^2)$ are presented. The predic- tions of FP - QCD, in which $\hat{I}{\pm }_s(Q^2)$ tends to a nonzero coupling constant $\hat{I}{\pm }_0$ as $Q^2\to \infty$, are in good agreement with the data. The description of the data is even better than that in the case of LO QCD. The FP-QCD parameter $\hat{I}{\pm }_0$ is determined with a good accuracy: $\hat{I}{\pm }_0=0.198\pm 0.009$. Having in mind the recent QCD fits to the same data we conclude that unlike the high precision and large $(x,Q^2)$ kinematic range of the CCFR data they cannot discriminate between QCD and FP - QCD predictions for $x{F}_3(x,Q^2)$.

7 pages, LaTex