A Primary Study of Heavy Baryons Lambda_Q, Xi_Q, Sigma_Q and Omega_Q

Abstract

We perform a preliminary study of the 1/2+ and 3/2+ ground-state baryons containing a heavy quark in the framework of the chiral SU(3) quark model. By using the calculus of variations, masses of Lambda_Q, Sigma_Q, Xi_Q, Omega_Q, Sigma_Q^*, Xi_Q^* and Omega_Q^*, where Q means c or b quark, are calculated. With taking reasonable model parameters, the numerical results of established heavy baryons are generally in agreement with the available experimental data, except that those of Xi_Q are somewhat heavier. For Omega_b with undetermined experimental mass and nobserved Xi_b^*, Omega_b^*, reasonable theoretical predictions are obtained. Interactions inside baryons are also discussed.

5 pages

References in corpus (19)

• Heavy Baryons in a Quark Model
• Constituent quark model study of the meson spectra
• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Towards an understanding of heavy baryon spectroscopy
• Strong Decays of Charmed Baryons in Heavy Hadron Chiral Perturbation Theory
• Bottom Baryons
• Direct observation of the strange b baryon Xi_b^{-}
• Observation of the doubly strange b baryon Omega_b-
• Analysis of the ${\frac{3}{2}}^{+}$ heavy and doubly heavy baryon states with QCD sum rules
• Heavy baryon spectroscopy in QCD
• Hadron Spectroscopy: Theory and Experiment
• The bound state problem of S-wave heavy quark meson-aitimeson systems
• X(3872) and the bound state problem of $D^0{\bar{D}}^{\ast 0}$ (${\bar{D}}^0{D}^{\ast 0}$) in a chiral quark model
• Mass spectra of the heavy baryons Lambda_Q and Sigma_Q^(*) from QCD sum rules
• Study on N Omega-bar systems in a chiral quark model
• A possible Omega-pi molecular state
• Chiral SU(3) Quark Model Study of Tetraquark States: $cn\bar{n}\bar{s}/cs\bar{s}\bar{s}$
• $Qq\bar{Q}{\bar{q}}^{\prime }$ States in Chiral SU(3) Quark Model
• Low-lying ud anti-s anti-s configurations in a non-relativistic constituent quark model