Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2005-07-26
Phys.Rev. C72 (2005) 025206
Physics
High Energy Physics
High Energy Physics - Phenomenology
17 pages, 6 figures, accepted for publication in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.72.025206
We investigate the structure of the SU(3) octet and decuplet baryons employing a constituent quark model designed for the study of the baryon-baryon interaction and successfully applied to the meson spectra. The model considers through the interacting potential perturbative, one-gluon exchange, and non-perturbative, boson exchanges and confinement, aspects of the underlying theory, QCD. We solve the three-quark problem by means of the Faddeev method in momentum space. We analyze the effect of the different terms in the interaction and make contact with the use of relativistic kinematics. We find an explanation to the strong contribution of the pseudoscalar forces in the semirelativistic approach for the octet baryons. A phenomenological recipe for the regularization parameter of the one-gluon exchange is found.
Garcilazo Humberto
Valcarce Aldo
Vijande Javier
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