1996/03/22 by Tsuneo Uematsu, Uematsu, Tsuneo
Physics and Astronomy · #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.hep-ph/9603375
openalex publication_date 1996/03/22 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We discuss the QCD effects of the higher-twist operators in the nucleon spin-dependent structure functions measured by the polarized deep inelastic leptoproduction. We particularly study the renormalization of the twist-3 and twist-4 operators within the framework of operator product expansions and renormalization group methods in perturbative QCD. Emphasis will be placed on the role of the operators proportional to equation of motion which appear in the mixing of the higher-twist operators through renormalization. The logarithmic and power corrections in Q2 due to the lowest spin higher-twist operators are discussed for the first moment of g1 structure function, Bjorken and Ellis-Jaffe sum rules, as well as the lower moments of g2 structure function.