Application of new multiloop QCD input to the analysis of $x{F}_3$ data

Abstract

The new theoretical input to the analysis of the experimental data of the CCFR collaboration for $F_3$ structure function of $\nu N$ deep inelastic scattering is considered. This input comes from the next-to-next-to-leading order corrections to the anomalous dimensions of the Mellin moments of the $F_3$ structure function. The QCD scale ${\Lambda }_{\overline{MS}}^{(4)}$ is extracted from higher-twist independent fits. The results obtained demonstrate the minimization of the influence of perturbative QCD contributions to the value of ${\Lambda }_{\overline{MS}}^{(4)}$

Comments: 7 pages, Based on contributions to Proceedings of Quarks-2000 Int. Seminar, Pushkin, May 2000, Russia and ACAT'2000 Workshop, Fermilab, October 2000, USA; definite shortcomings are eliminated, resulys unchanged