Eur. Phys. J. C 18, 747-756
DOI: 10.1007/s100520100570
Baryon form factors in chiral perturbation theory
B. Kubis and U.-G. MeißnerForschungszentrum Jülich, Institut für Kernphysik (Theorie), 52425 Jülich, Germany b.kubis@fz-juelich.de
Ulf-G.Meissner@fz-juelich.de
(Received: 25 October 2000 / Published online: 23 January 2001 -© Springer-Verlag 2001)
Abstract
We analyze the electromagnetic form factors of the ground state baryon octet
to fourth order in relativistic baryon chiral perturbation theory.
Predictions for the charge radius and the
-
transition moment are found to be in excellent
agreement with the available experimental information.
Furthermore, the convergence behavior of the hyperon charge radii
is shown to be more than satisfactory.
© Società Italiana di Fisica, Springer-Verlag 2001