Kinematic power corrections in off-forward hard reactions

Details Kinematic power corrections in off-forward hard reactions Kinematic power corrections in off-forward hard reactions

2011-08-11

arxiv.org/abs/1108.2394v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages

Scientific paper

We develop a general approach to the calculation of kinematic corrections ~t/Q^2, ~m^2/Q^2 in hard processes which involve momentum transfer from the initial to the final hadron state. As the principal result, the complete expression is derived for the time-ordered product of two electromagnetic currents that includes all kinematic corrections to twist-four accuracy. The results are immediately applicable e.g. to the studies of deeply-virtual Compton scattering.

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