Lepton-Pair Production in Virtual Compton Scattering off the Proton
Nuclear Theory
2016-08-15 v1
Abstract
We show that lepton-pair production in Virtual Compton Scattering offers, through interference with the well-known Bethe-Heitler process, a sensitive probe to learn the longitudinal response of resonances and the electromagnetic nucleon form factors. This interference can be measured directly in terms of an asymmetry. The role of off-shell effects in the N-N- vertices is investigated as well. An additional N-N- contact term in the amplitude, included to ensure gauge invariance of the model, cancels a substantial part of the off-shell effects.
Keywords
Cite
@article{arxiv.nucl-th/9701042,
title = {Lepton-Pair Production in Virtual Compton Scattering off the Proton},
author = {A. Yu. Korchin and O. Scholten and F. de Jong},
journal= {arXiv preprint arXiv:nucl-th/9701042},
year = {2016}
}
Comments
8 pages, LaTeX , 2 figures. To appear in Phys. Lett. B