Diquarks and pentaquark nature

Details Diquarks and pentaquark nature Diquarks and pentaquark nature

2004-05-24

arxiv.org/abs/hep-ph/0405238v1

Int.J.Mod.Phys. E15 (2006) 87-100

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, 3 figures, pdf

Scientific paper

The relativistic five-quark equations are found in the framework of the dispersion relation technique. The five-quark amplitudes for the low-lying pentaquarks including the u,d,s-quarks are calculated. The poles of these amplitudes determine the masses of N- and Xi- pentaquarks. The mass spectra of the lowest pentaquarks with the 1/2+,1/2-,3/2+ are calculated. The mass values of the positive and negative parity pentaquarks are determined by the mixing of both 0+ and 1+ diquarks.

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