Strange tribaryons as K¯-mediated dense nuclear systems
Strange tribaryons as K¯-mediated dense nuclear systems
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DOI：
10.1016/j.physletb.2005.03.041
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发表时间：
2005-01
影响因子：
4.4
通讯作者：
Y. Akaishi;A. Doté;T. Yamazaki
中科院分区：
文献类型：
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作者：
Y. Akaishi;A. Doté;T. Yamazaki
我们讨论了最近发现的4he (stopped-K−,p) S0（3115）和4he (stopped-K−,n) S1（3140）中奇怪的三重子在收缩核核上形成的深束缚K¯态框架内的意义。S1（3140）对应于T=0ppnK−，而S0（3115）对应于T=1pnnK−，这是先前预测的ppk−的等压模拟状态。观察到的结合能可以通过包括相对论效应和调用15%的中等增强K¯N相互作用来解释。我们提出了各种实验方法来进一步研究这些和相关的有界系统。
We discuss the implications of recently discovered strange tribaryons in4He(stopped-K−,p) S0(3115) and4He(stopped-K−,n) S1(3140) within the framework of deeply bound K¯ states formed on shrunk nuclear cores. S1(3140) corresponds to T=0ppnK−, whereas S0(3115) to T=1pnnK−, which is an isobaric analog state of pppK−, predicted previously. The observed binding energies can be accounted for by including the relativistic effect and by invoking a medium-enhanced K¯N interaction by 15%. We propose various experimental methods to further study these and related bound systems.