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Breathing mode in the SU(3) Skyrme model

Breathing mode in the SU(3) Skyrme model We extend the collective treatment of the SU(3) Skyrme model by including the scaling degree of freedom (size of the pion cloud) as a dynamical variable. The resulting Hamiltonian is diagonalized by a truncation procedure, providing a fascinating spectroscopy and a solution to the puzzle of having two candidates for the Roper N ( 1440 ) resonance. We discuss the mass spectrum of the low-lying ½ + and 3 2 + baryons as well as their excitations. The model is further checked by calculating some standard baryon properties. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Breathing mode in the SU(3) Skyrme model

Physical Review D , Volume 44 (9) – Nov 1, 1991
12 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 1991 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.44.2916
Publisher site
See Article on Publisher Site

Abstract

We extend the collective treatment of the SU(3) Skyrme model by including the scaling degree of freedom (size of the pion cloud) as a dynamical variable. The resulting Hamiltonian is diagonalized by a truncation procedure, providing a fascinating spectroscopy and a solution to the puzzle of having two candidates for the Roper N ( 1440 ) resonance. We discuss the mass spectrum of the low-lying ½ + and 3 2 + baryons as well as their excitations. The model is further checked by calculating some standard baryon properties.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Nov 1, 1991

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