| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8194766 | Physics Letters B | 2009 | 6 Pages |
Abstract
We extend an earlier study of the baryon magnetic moments in chiral perturbation theory by the explicit inclusion of the spin-3/2 decuplet resonances. We find that the corrections induced by these heavier degrees of freedom are relatively small in a covariant framework where unphysical spin-1/2 modes are removed. Consequently, implementing the leading SU(3)-breaking corrections given by both the baryon and decuplet contributions, we obtain a description of the baryon-octet magnetic moments that is better than the Coleman-Glashow relations. Finally, we discuss the uncertainties and compare between heavy baryon and covariant approaches.
Related Topics
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Authors
L.S. Geng, J. Martin Camalich, M.J. Vicente Vacas,