Radiative corrections to deeply virtual Compton scattering
A.V. Belitsky, D. M\"uller, L. Niedermeier, A. Sch\"afer
TL;DR
This paper explores methods to measure deeply virtual Compton scattering amplitudes using asymmetries, employing recent perturbative calculations to estimate scattering amplitudes and access skewed parton distributions.
Contribution
It introduces a model-dependent numerical estimation approach utilizing recent two-loop evolution kernels and one-loop coefficient functions for DVCS amplitudes.
Findings
Demonstrates feasibility of measuring DVCS asymmetries
Provides numerical estimates of scattering amplitudes
Utilizes recent perturbative QCD calculations
Abstract
We discuss possibilities of measurement of deeply virtual Compton scattering amplitudes via different asymmetries in order to access the underlying skewed parton distributions. Perturbative one-loop coefficient functions and two-loop evolution kernels, calculated recently by a tentative use of residual conformal symmetry of QCD, are used for a model dependent numerical estimation of scattering amplitudes.
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