Finite-t and target mass corrections to deeply virtual Compton scattering

Abstract

We carry out the first complete calculation of kinematic power corrections ~t/Q^2 and ~m^2/Q^2 to the helicity amplitudes of deeply virtual Compton scattering. This result removes an important source of uncertainties in the QCD predictions for intermediate momentum transfers Q^2 ~ 1-10 GeV^2 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.

4 pages, 4 figures

References in corpus (3)

• Finite-t and target mass corrections to DVCS on a scalar target
• Target mass and finite $t$ corrections to diffractive deeply inelastic scattering
• Target mass and finite momentum transfer corrections to unpolarized and polarized diffractive scatterin

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