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Phys. Rev. C 65, 062201 (2002) [4 pages]

Simple quark model with chiral phenomenology

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I. C. Cloet *, D. B. Leinweber †, and A. W. Thomas ‡
Special Research Centre for the Subatomic Structure of Matter and Department of Physics and Mathematical Physics, University of Adelaide, SA 5005 Adelaide, Australia

Rapid Communication Received 8 March 2002; published 14 June 2002

We propose a new approach to the determination of hadronic observables in which the essential features of chiral symmetry are combined with conventional constituent quark models. To illustrate the approach, we consider the simple quark model in the limit of SU(3) flavor symmetry at the strange quark mass. The comparison with data is made after an analytic continuation which ensures the correct leading nonanalytic behavior of chiral perturbation theory. The approach not only gives an excellent fit for the octet baryon magnetic moments but the prediction for the Δ++ magnetic moment is also in good agreement with current measurements.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevC.65.062201
DOI: 10.1103/PhysRevC.65.062201
PACS: 12.39.Fe, 12.39.Jh, 13.40.Em, 14.20.-c

* Email address: icloet@physics.adelaide.edu.au
† Email address: dleinweb@physics.adelaide.edu.au
‡ Email address: athomas@physics.adelaide.edu.au

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