NNLO QCD analysis of CCFR data onxF3 structure function and Gross-Llewellyn-Smith sum rule with higher twist and nuclear corrections

A detailed NNLO QCD analysis of new CCFR data on thexF3 structure function including the target mass, higher twist and nuclear corrections was performed and parametrizations of the perturbative and power terms of the structure function were constructed. The results of QCD analysis of the structure function were used to study theQ2-dependence of the Gross—Llewellyn-Smith sum rule. The αS /π-expansion ofSGLS(Q2) was studied and parameters of the expansion were found to bes142.74 ± 0.01,s2422.22 6 0.23,s3427.86 ± 1.74 which are in good agreement with the perturbative QCD predictions for the Gross—Llewellyn-Smith sum rule in the next-to-leading and next-to-next-to-leading order.