Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes
High Energy Physics - Phenomenology
2009-01-16 v1
Abstract
The electromagnetic form factors calculated through Euclidean Bethe-Salpeter amplitude and through the light-front wave function are compared with the one found using the Bethe-Salpeter amplitude in Minkowski space. The form factor expressed through the Euclidean Bethe-Salpeter amplitude (both within and without static approximation) considerably differs from the Minkowski one, whereas form factor found in the light-front approach is almost indistinguishable from it.
Cite
@article{arxiv.0712.0971,
title = {Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes},
author = {V. A. Karmanov and J. Carbonell and M. Mangin-Brinet},
journal= {arXiv preprint arXiv:0712.0971},
year = {2009}
}
Comments
3 pages, 2 figures. Contribution to the proceedings of the 20th International Conference on Few-Body Problems in Physics (FB20), Pisa, Italy, September 10-14, 2007. To be published in "Few-Body Systems"