A Primary Study of Heavy Baryons LambdaQ, XiQ, SigmaQ and OmegaQ
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 LambdaQ, SigmaQ, XiQ, OmegaQ, SigmaQ*, XiQ* and OmegaQ*, 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 XiQ are somewhat heavier. For Omegab with undetermined experimental mass and nobserved Xib*, Omegab*, reasonable theoretical predictions are obtained. Interactions inside baryons are also discussed.
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