Resummation of target mass corrections in two-photon processes: twist-two sector
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
We develop a formalism for the resummation of target mass corrections in off-forward two-photon amplitudes given by a chronological product of electromagnetic currents, arising in e.g. deeply virtual Compton scattering. The method is based on a relation of composite operators with a definite twist to harmonic tensors, which form an irreducible representation of the Lorentz group. We give an application of the framework for the matrix elements of twist-two operators.
Keywords
Cite
@article{arxiv.hep-ph/0102224,
title = {Resummation of target mass corrections in two-photon processes: twist-two sector},
author = {A. V. Belitsky and D. Müller},
journal= {arXiv preprint arXiv:hep-ph/0102224},
year = {2009}
}
Comments
11 pages, LaTeX, no figures