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Electric and magnetic form factors of strange baryons

Authors:	Email author" target="_blank">T?Van?Cauteren Email author D?Merten T?Corthals S?Janssen B?Metsch H-R?Petry J?Ryckebusch

Institution:	(1) Department of Subatomic and Radiation Physics, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium;(2) Helmholtz-Institut für Strahlen- und Kernphysik, Nußallee 14-16, D-53115 Bonn, Germany

Abstract:	Predictions for the electromagnetic form factors of the $\Lambda$ , $\Sigma$ and $\Xi$ hyperons are presented. The numerical calculations are performed within the framework of the fully relativistic constituent-quark model developed by the Bonn group. The computed magnetic moments compare favorably with the experimentally known values. Most magnetic form factors G_M (Q²) can be parameterized in terms of a dipole with cutoff masses ranging from 0.79 to 1.14 GeV.Received: 2 October 2003, Published online: 20 April 2004PACS: 11.10.St Bound and unstable states; Bethe-Salpeter equations - 12.39.Ki Relativistic quark model - 13.40.Gp Electromagnetic form factors

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