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1983•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsRequires access

Cluster model of baryons

K. F. Liu, Chun Wa Wong

Open publisher page 35 citations

Abstract

Baryons are studied in the constituent quark model by reducing the three-body problem to equivalent two-body problems involving a diquark and a quark. Rotational and radial excitations of the diquark or of the third quark are calculated by using nonrelativistic mesonic $q\overline{q}$ potentials which are fitted to meson masses. The results are found to be in good agreement with experimental baryon masses. A strong suppression of the mesonic spin-orbit potential is required for light baryons, in agreement with the conclusion of other authors.

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What this paper is about

Baryons are studied in the constituent quark model by reducing the three-body problem to equivalent two-body problems involving a diquark and a quark. Rotational and radial excitations of the diquark or of the third quark are calculated by using nonrelativistic mesonic $q\overline{q}$ potentials which are fitted to meson masses. The results are found to be in good agreement with experimental baryon masses. A strong suppression of the mesonic spin-orbit potential is required for light baryons, in agreement with the conclusion of other authors.

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Available abstract

Baryons are studied in the constituent quark model by reducing the three-body problem to equivalent two-body problems involving a diquark and a quark. Rotational and radial excitations of the diquark or of the third quark are calculated by using nonrelativistic mesonic $q\overline{q}$ potentials which are fitted to meson masses. The results are found to be in good agreement with experimental baryon masses. A strong suppression of the mesonic spin-orbit potential is required for light baryons, in agreement with the conclusion of other authors.

Key concepts: Physics, Diquark, Baryon, Particle physics, Meson, Quark model, Lambda baryon, Quark

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