Nucleon Mass Corrections to Spin Dependent Structure Functions and Relations Between their Twist-3 Contributions
نویسنده
چکیده
The nucleon mass corrections are calculated to all polarized structure functions for neutral and charged current deep inelastic scattering in lowest order in the coupling constant. The impact of the target mass corrections on the general relations between the twist–2 and twist–3 parts of the structure functions is studied and three new relations between the twist–3 contributions are derived. The size of nucleon mass corrections for the g1 and g2 structure functions are estimated.
منابع مشابه
Target mass corrections and twist-3 in the nucleon spin structure functions
The Nachtmann moment is employed to study the contribution of twist-3 operator to the nucleon spin structure functions. Target mass corrections to the CornwallNorton 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 d̃2 extracted from the Cornwall-Norton moments. PACS: 13.60.Hb, 12.38.Aw, 12.38Cy; ...
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تاریخ انتشار 1999