Masses of heavy baryons in the relativistic quark model

Details Masses of heavy baryons in the relativistic quark model Masses of heavy baryons in the relativistic quark model

2005-04-14

arxiv.org/abs/hep-ph/0504112v2

Phys.Rev. D72 (2005) 034026

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 2 figures, version published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.72.034026

The masses of the ground state heavy baryons consisting of two light (u,d,s) and one heavy (c,b) quarks are calculated in the heavy-quark--light-diquark approximation within the constituent quark model. The light quarks, forming the diquark, and the light diquark in the baryon are treated completely relativistically. The expansion in v/c up to the second order is used only for the heavy (b and c) quarks. The diquark-gluon interaction is taken modified by the form factor describing the light diquark structure in terms of the diquark wave functions. An overall reasonable agreement of the obtained predictions with available experimental data and previous theoretical results is found.

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