科研之友
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摘要
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), Omega*(Q), Xi*(Q) and Omega*(Q), where Q means c or b quark, are calculated. By taking reasonable model parameters, the numerical results of established heavy baryons are generally in agreement with the experimental data available, except that those of Xi(Q) are somewhat heavier. For Omega(b) with undetermined experimental mass and unobserved Xi*(b), Omega*(b) reasonable theoretical predictions are obtained. Interactions inside baryons are also discussed.
