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arXiv 1806.06504nucl-thhep-ph
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核物质中超子质量的修正

Modification of hyperon masses in nuclear matter

Ki-Hoon Hong, Ulugbek Yakhshiev, Hyun-Chul Kim

摘要:

本文在介质修正的SU(3)Skyrme模型的框架下讨论了重子的性质。通过引入SU(2)扇区中的介质泛函,以最小的方式进行修改。这些泛函与饱和点附近的核物质性质有关。SU(3)扇区的修正是伴随着核物质中K介子性质的附加变化而进行的。结果表明,奇异扇区中重子的性质对介质中K介子性质的改变很敏感。本文还讨论了强子性质的介质内修正与其它模型方法和唯象指示的一致性。

英文摘要:

We discuss the properties of baryons within the framework of the in-medium modified SU(3) Skyrme model. The modification is performed by a minimal way, the medium functionals in the SU(2) sector being introduced. These functionals are then related to nuclear matter properties near the saturation point. The modifications in the SU(3) sector are performed with the additional changes of kaon properties in nuclear matter. The results show that the properties of baryons in the strange sector are sensitive to the in-medium modifications of the kaon properties. The consistency of the in-medium modifications of hadron properties in the present approach with other model approaches and phenomenological indications is also discussed.

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