  We describe a systematic approach [1] to the calculation of kinematic
corrections ~ t/Q^2, m^2/Q^2 in hard exclusive processes which involve momentum
transfer from the initial to the final hadron state. As an example, the
complete expression is derived for the time-ordered product of two
electromagnetic currents that includes all kinematic corrections due to the
quark distribution to twist-four accuracy. The results are applicable e.g. to
the studies of deeply-virtual Compton scattering.

High Energy Physics - Phenomenology