| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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A Primary Study of Heavy Baryons ΛQ, ΣQ, ΞQ and ΩQ |
| ZHAO Qiao-Yan1, ZHANG Dan1**, ZHANG Qiu-Yang2
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1 School of Physical Science and Technology, Inner Mongolia University, Hohhot 010021
2 Graduate School of Zhejiang Gongshang University, Hangzhou 310018
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ZHAO Qiao-Yan, ZHANG Dan, ZHANG Qiu-Yang 2011 Chin. Phys. Lett. 28 071201 |
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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 ΛQ, ΣQ, ΞQ, ΩQ, ΣQ*, ΞQ* and ΩQ*, 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 ΞQ are somewhat heavier. For Ωb with undetermined experimental mass and unobserved Ξb*, Ωb*, reasonable theoretical predictions are obtained. Interactions inside baryons are also discussed.
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| Keywords:
12.39.-x
14.20.Lq
14.20.Mr
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Received: 18 February 2011
Published: 29 June 2011
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| PACS: |
12.39.-x
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(Phenomenological quark models)
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14.20.Lq
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(Charmed baryons (|C|>0, B=0))
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14.20.Mr
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(Bottom baryons (|B|>0))
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