On the Structure of the Virtual Compton Amplitude in the Generalized Bjorken Region: Integral Relations
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A systematic study is performed of the structure of the twist-2 contributions to the virtual Compton amplitude in deep-inelastic non-forward scattering for general spin states in the non-local light cone expansion. The gauge invariance is proven in this approach for the twist-2 contributions for non-forward scattering. Relations are derived between the contributing non-forward amplitudes.
23 pages LATEX, 1 style file, slightly extended version
23 pages LATEX, 1 style file, slightly extended version