Spin-dependent structure functions of nuclei in the meson-nucleon theory

A theoretical approach to the investigation of spin-dependent structure functions in deep inelastic scattering of polarized leptons off polarized nuclei, based on the effective meson-nucleon theory and operator product expansion method, is proposed and applied to deuteron and ${}_{}{}^3{}_{}{}^{}\mathrm{He}$. The explicit forms of the moments of the dueteron and ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ spin-dependent structure functions are found and numerical estimates of the influence of nuclear structure effects are presented.