Electromagnetic moments of relativistic higher spin baryons

Abstract

We point out a source of ambiguities in the measurements of the electromagnetic moments of spin-3/2 baryons which rely on relativistic Lagrangian models. An anambiguous relation between the parameters of the spin-3/2 electromagnetic Lagrangian and the electromagnetic moments of the spin-3/2 particle exits in general only for on-shell situation, while the measurements are done on ``virtual'' baryons.

arXiv comment4 pages, 2 figures; contribution to the proceedings of the International Conference on Quark Nuclear Physics (Adelaide, February 2000)

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• The associated photoproduction of K+ meson off proton within a coupled-channels K-matrix approach
• Production of a cascade hyperon in the K^- - proton interaction
• Compton scattering off elementary spin 3/2 particles