Masses of excited heavy baryons in the relativistic quark-diquark picture

Abstract

The mass spectra of the excited 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 internal structure of the diquark is taken into account by inserting the diquark-gluon interaction form factor. An overall good agreement of the obtained predictions with available experimental data is found.

13 pages; changed title; added Table VIII, note on new experimental data and references; version to be published in Phys.Lett.B

References in corpus (2)

• Faddeev study of heavy baryon spectroscopy
• Direct observation of the strange b baryon Xi_b^{-}

Cited by in corpus (7)

• Heavy Baryons in a Quark Model
• Towards an understanding of heavy baryon spectroscopy
• Charmed baryon strong decays in a chiral quark model
• Some mass relations for mesons and baryons in Regge phenomenology
• Test of the heavy quark-light diquark approximation for baryons with a heavy quark
• Model-independent analysis for determining mass splittings of heavy baryons
• Heavy hadrons in the relativistic quark model