The study of Ξ~*-Ω interaction

Dai Lian-rong
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引用次数: 34

Abstract

The short-range interaction mechanisms are totally different in the chirial SU(3) quark model and in the extended chiral SU(3) quark model.One is from the one-gluon exchange and another is from the vector meson exchange.In this work,we study the Ξ*-Ω interaction in these two models.The results show that it could be deeply bound states in these two models with totally different interaction mechanisms.The possible reasons of forming(Ξ*Ω)ST=012 stangeness-5 bound states are given.From the results,we can see that the chiral σ meson exchange is important,which dominantly provides the attractive interaction.Also we find that the quark exchange effect give attraction to this system,which means the special symmetry is important.Both reasons are helpful to form Ξ*-Ω deeply bound states.
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Ξ~*-Ω相互作用的研究
手性SU(3)夸克模型与扩展的手性SU(3)夸克模型的短程相互作用机制完全不同。一个是单胶子交换,另一个是矢量介子交换。在这项工作中,我们研究了这两个模型中的Ξ*-Ω相互作用。结果表明,在这两种相互作用机制完全不同的模型中都可能存在深度束缚态。给出了形成(Ξ*Ω)ST=012束缚态的可能原因。从结果可以看出,手性σ介子交换是重要的,它主要提供吸引相互作用。我们还发现,夸克交换效应对该体系具有吸引力,这意味着特殊的对称性是重要的。这两个原因都有助于形成Ξ*-Ω深度束缚状态。
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