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

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

2011-02-14

arxiv.org/abs/1102.2659v5

Chin.Phys.Lett.28:071201,2011

Physics

Nuclear Physics

Nuclear Theory

5 pages

Scientific paper

10.1088/0256-307X/28/7/071201

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.

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