Bjorken sum rule analysis: revised.

V.L. Khandramai, O.P. Solovtsova, O.V. Teryaev

Gomel State Technical University , Belarus

We update and extend results of our previous Bjorken sum rule analysis at low momentum transfers with the four-loop expression for the perturbative QCD correction. We study in detail asymptotic nature of the perturbative expansions in the region Q < 1 GeV and extract information about QCD parameters.