Abstract

We calculate polarized quark distribution functions and ${g}_{1}$ structure functions for the nucleon. The calculation is performed in the light-cone frame. The dressed nucleon is assumed to be a superposition of the bare nucleon plus virtual light-cone Fock states of baryon-meson pairs. For bare nucleon we consider both the case of diquark-quark clusterization and the case which there is no quark clusterization inside the nucleon. The initial distributions are evolved. The final results are compared with other theoretical calculations and experimental observations.

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