奇异强子物质的有效模型描述

原子核物理评论

奇异强子物质的有效模型描述

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宋宏秋, 章利良, 苏汝铿, 王平. 2001: 奇异强子物质的有效模型描述, 原子核物理评论, 18(1): 9-15. doi: 10.3969/j.issn.1007-4627.2001.01.002

引用本文:

宋宏秋, 章利良, 苏汝铿, 王平. 2001: 奇异强子物质的有效模型描述, 原子核物理评论, 18(1): 9-15. doi: 10.3969/j.issn.1007-4627.2001.01.002

2001: Strange Hadronic Matter in an Effective Model, Nuclear Physics Review, 18(1): 9-15. doi: 10.3969/j.issn.1007-4627.2001.01.002

Citation:

2001: Strange Hadronic Matter in an Effective Model, Nuclear Physics Review, 18(1): 9-15. doi: 10.3969/j.issn.1007-4627.2001.01.002

Strange Hadronic Matter in an Effective Model

摘要: 把FST模型推广到包含奇异性的情形，并在平均场近似下用它来研究含有核子、Λ超子和Ξ超子的奇异强子物质的性质．讨论了有效重子质量对介质密度和奇异数含量的依赖性以及奇异强子物质的饱和性和稳定性.
- 奇异强子物质 /
- 稳定性 /
- FST模型
Abstract: The strange hadronic matter with nucleon,Λ-hyperon andΞ-hyperonis was studied by using an effective model in a mean-field approximation.The density dependence of the effective baryon masses as well as the saturation properties and stabilities of the strange hadronic matter were discussed.The result indicates a quite large strangeness fraction range where the multi-hyperon nuclear matter is stable against particle emission.In the large strangeness fraction region the Ξ component dominates,resulting in a deeply bound state.The strange mesons play an important role in mediating the strong interaction between the hyperons.