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

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Dong, Y. B.
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Abstract
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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 $\tilde d_2$ extracted from the Cornwall-Norton moments.
Comment: 11 pages, 1 figures
Keywords
High Energy Physics - Phenomenology
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