Quantum chromodynamics corrections to polarised deep-inelastic electron-nucleon scattering

Quantum chromodynamics corrections to order αsub(s) (the running coupling constant), using the quark-parton approach are calculated for the spin-dependent structure functions in deep-inelastic polarised electron-nucleon scattering. Consequences of these corrections for the Bjorken sum rule and the asymmetry in the case of longitudinally polarised (with respect to the beam) nucleons are discussed which could provide possible tests of quantum chromodynamics. Comparison of the results with the moments of the flavour non-singlet contribution to the structure functions obtained using operator product expansion is also given. (auth.)