Reconstruction of non-forward evolution kernels
High Energy Physics - Phenomenology
2009-10-31 v2
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.
Cite
@article{arxiv.hep-ph/9904477,
title = {Reconstruction of non-forward evolution kernels},
author = {A. V. Belitsky and D. Müller and A. Freund},
journal= {arXiv preprint arXiv:hep-ph/9904477},
year = {2009}
}
Comments
13 pages, LaTeX, typos fixed