Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes

Details Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes

2007-12-06

arxiv.org/abs/0712.0971v1

Few Body Syst.44:283-286,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures. Contribution to the proceedings of the 20th International Conference on Few-Body Problems in Physics (FB20

Scientific paper

10.1007/s00601-008-0309-4

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.

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