Target mass corrections and twist-3 in the nucleon spin structure functions
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 g1,2 are discussed. It is found that the corrections play a sizeable role to the contribution of the twist-3 d2 extracted from the Cornwall-Norton moments.
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