Documents Spin Study at JLab: from Longitudinal to Transverse J. P. Chen, Jefferson Lab Berkeley Summer Spin.....

Generalized Bjorken sum rule: Definition of effective QCD couplings G. Grunberg, PLB B95 70 (1980); PRD 29 2315 (1984); PRD 40 680(1989). Prescription: Define effective couplings…