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arXiv · hep-ph/9904477

Reconstruction of non-forward evolution kernels

A. V. Belitsky·D. Müller·A. Freund
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Abstract

We develop a framework for the reconstruction of the non-forward kernels which govern the evolution of twist-two distribution amplitudes and off-forward parton distributions beyond leading order. It is based on the knowledge of the special conformal symmetry breaking part induced by the one-loop anomaly and conformal terms generated by forward next-to-leading order splitting functions, and thus avoids an explicit two-loop calculation. We demonstrate the formalism by applying it to the chiral odd and flavour singlet parity odd sectors.

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A. V. Belitsky, D. Müller, A. Freund. 1999-06-21. Reconstruction of non-forward evolution kernels. https://doi.org/10.1016/s0370-2693(99)00837-0

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