Target mass corrections and twist-3 in the nucleon spin structure functions

Y. B. Dong

doi:10.1016/j.physletb.2007.07.022

paper

Target mass corrections and twist-3 in the nucleon spin structure functions

arXiv:0707.0331 · doi:10.1016/j.physletb.2007.07.022

Abstract

The Nachtmann moment is employed to study the contribution of twist-3 operator to the nucleon spin structure functions. Target mass corrections to the Cornwall-Norton moments of the spin structure functions $g_{1, 2}$ are discussed. It is found that the corrections play a sizeable role to the contribution of the twist-3 $d ~_{2}$ extracted from the Cornwall-Norton moments.

11 pages, 1 figures