Abstract
We carry out the first complete calculation of kinematic power corrections similar to t/Q(2) and similar to m(2)/Q(2) to the helicity amplitudes of deeply virtual Compton scattering. This result removes an important source of uncertainties in the quantum chromodynamics predictions for intermediate momentum transfers Q(2) similar to 1-10 GeV2 that are accessible in the existing and planned ...
Abstract
We carry out the first complete calculation of kinematic power corrections similar to t/Q(2) and similar to m(2)/Q(2) to the helicity amplitudes of deeply virtual Compton scattering. This result removes an important source of uncertainties in the quantum chromodynamics predictions for intermediate momentum transfers Q(2) similar to 1-10 GeV2 that are accessible in the existing and planned experiments. In particular, the finite-t corrections are significant and must be taken into account in the data analysis.
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