
TY  - JOUR
A1  - Tanaka, Kazuhiro 
T1  - Spin Structure Functions of the Nucleon and Twist-3 Operators in QCD
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1997
VL  - 50
IS  - 1
SP  - 79
EP  - 94
KW  - 
UR  - https://doi.org/10.1071/P96048 
N2  - We investigate the twist-3 spin-dependent parton distribution functions hL(x; Q2) and gT (x; Q2). We discuss the physical relevance of the parton distributions from the view point of the factorization theorem in QCD. A unique feature of the &#8216;measurable&#8217; higher-twist distributions hL and gT is emphasized. We investigate the Q2 -evolution of hL and gT in the framework of the renormalization group and standard QCD perturbation theory. We calculate the anomalous dimension matrix for the twist-3 operators for hL and gT in the one-loop order. The operator mixing among the relevant twist-3 operators, including the operators proportional to the QCD equations of motion, is treated properly in a consistent scheme. Implications for future experiments are also discussed. 
ER  -

