Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9851084 | Nuclear Physics A | 2005 | 4 Pages |
Abstract
The Lorentz-covariant Bethe-Salpeter model developed by the Bonn group is used to calculate the electromagnetic form factors of the ground-state hyperons and the helicity amplitudes of the hyperon resonances. The computed magnetic moments of the ground- state hyperons agree well with the experimental values and the magnetic form factors exhibit a dipole Q2-dependence. The photo-amplitude of the Î(1405) is badly reproduced, which hints at the special structure of this resonance.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
T. Van Cauteren, D. Merten, T. Corthals, B. Metsch, H.-R. Petry, J. Ryckebusch,