Finite-t and target mass corrections in off-forward hard reactions
High Energy Physics - Phenomenology
2015-06-03 v1
Abstract
We describe a systematic approach [1] to the calculation of kinematic corrections ~ t/Q^2, m^2/Q^2 in hard exclusive processes which involve momentum transfer from the initial to the final hadron state. As an example, the complete expression is derived for the time-ordered product of two electromagnetic currents that includes all kinematic corrections due to the quark distribution to twist-four accuracy. The results are applicable e.g. to the studies of deeply-virtual Compton scattering.
Keywords
Cite
@article{arxiv.1111.3863,
title = {Finite-t and target mass corrections in off-forward hard reactions},
author = {V. M. Braun and A. N. Manashov},
journal= {arXiv preprint arXiv:1111.3863},
year = {2015}
}
Comments
Invited talk at the 33rd Erice school on nuclear physics, Erici, 16-24 September 2011, Italy