Relativistic quark model and pentaquark spectroscopy

Abstract

The relativistic five-quark equations are found in the framework of the dispersion relation technique. The solutions of these equations using the method based on the extraction of leading singularities of the amplitudes are obtained. The five-quark amplitudes for the low-lying pentaquarks are calculated under the condition that flavor SU(3) symmetry holds. The poles of five-quark amplitudes determine the masses of the lowest pentaquarks. The mass spectra of pentaquarks which contain only light quarks are calculated. The calculation of pentaquark amplitudes estimates the contributions of three subamplitudes. The main contributions to the pentaquark amplitude are determined by the subamplitudes, which include the meson states.

arXiv comment22 pages, pdf

References in corpus (6)

• Two heavy-light mesons on a lattice
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• Search for the pentaquark via the P^0_{{c bar}s} --> phi,pi,p decay
• Constructing Hybrid Baryons with Flux Tubes
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Cited by in corpus (7)

• Heavy flavor pentaquarks with four heavy quarks
• Hadronic Decays Involving Heavy Pentaquarks
• Relativistic five-quark equations and u, d- pentaquark spectroscopy
• Relativistic five-quark equations and negative parity pentaquarks
• Relativistic five-quark equations and exotic baryons with isospin I=5/2
• Width of Theta - pentaquarks in relativistic quark model
• Diquarks and pentaquark nature