The Spin of the Nucleon in the Semi-inclusive DIS with Charged Current

Abstract

The investigation of spin structure of the nucleon is one of the actual problems of particle physics [1]. According to recent experimental data [2]—[5]the quarks are responsible for 33-35% of nucleon spin and the strange quarks contribution is near to zero ∆s ~ 0.1 The nucleon spin problem requires the further experimental research of all contributions. In present work the possibilities of determination of the quark contributions to the nucleon spin based on observable asymmetries of the semi-inclusive deep inelastic scattering (SIDIS) with the charged current are considered.