Nuclear effect in deuteron, Q(sup 2)-evolution of F(sub 3)(sup N)(x,Q(sup 2)) structure function and Gross-Llewellyn Smith sum rule

摘要

Deep inelastic neutrino-deuteron scattering in the covariant approach in the light-cone variables is considered. The deuteron structure function F(sub 3)(sup D)(x,Q(sup 2)) is calculated in the relativistic impulse approximation on the basis of the relativistic wave function. The results are compared with available experimental data. The nuclear effect of relativistic Fermi motion described by the ratio R(sub F)(sup D/N) = F(sub 3)(sup D)/F(sub 3)(sup N) is estimated. The dependence of the ratio on x and Q(sup 2) is investigated. The dependence of the Gross-Llewellyn Smith integral S(sub GLS)(x,Q(sup 2)) on x and Q(sup 2) is considered. On the basis of the QCD analysis of the xF(sub 3)(sup N) structure function the correction for S(sub GLS)(x,Q(sup 2)) due to the nuclear effect is estimated and it is shown that the nuclear effect should be taken into account to verify the Gross-Llewellyn Smith sum rule. 25 refs., 4 figs., 2 tabs. (Atomindex citation 26:078419)