Abstract
We consider continuation of the Bjorken sum rule (BSR) in the low Q2 region. QCD coupling is ’frozen’ with the help of ’Massive’ APT modification. For higher twist corrections we apply spectral representation with several particular spectral physically motivated functions. Analytic restrictions are imposed stemming from Gerasimov-Drell-Hearn sum rule and the finiteness of respective spin-dependent cross-sections. Results are compared with the current experimental data.
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