Constituent quark model study of light- and strange-baryon spectra

6533b7cffe1ef96bd1259962

RESEARCH PRODUCT

Constituent quark model study of light- and strange-baryon spectra

Humberto Garcilazo Javier Vijande A. Valcarce

subject

Quark Quantum chromodynamics Physics Nuclear and High Energy Physics Particle physics Meson Nuclear Theory High Energy Physics::Lattice Nuclear Theory High Energy Physics::Phenomenology Hyperon Constituent quark FOS: Physical sciences Física Gluon High Energy Physics - Experiment Baryon Nuclear Theory (nucl-th)High Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph)Regularization (physics)High Energy Physics::Experiment Nuclear Experiment

description

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.

year	journal	country	edition	language
2005-07-26

10.1103/physrevc.72.025206 http://arxiv.org/abs/hep-ph/0507297

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