论文标题
从$ \ bar {k} n $互动到$ \ bar {k} $ - 核准结合状态
From $\bar{K}N$ Interactions to $\bar{K}$-Nuclear Quasi-Bound States
论文作者
论文摘要
我们回顾了我们研究$ K^ - $ - 核互动和$ k^ - $ - 核准则结合状态的当前状态。所采用的$ k^ - $ - 核光学电位由两个部分组成 - 单核一个由微观动机的$ \ bar {k} n $振幅构造的，而现象学多核子则以拟合为kaonic Atoms数据受约束。在我们对多体系统中$ k^{ - } $ quasi结合状态的计算中包含多核子吸收，导致巨大的宽度，大大超过了结合能。如果确认此功能，则不太可能观察到这种状态。最后，还讨论了针对中等内部$ k^-nn $吸收的新显微镜模型的开发。
We review the current status of our study of $K^-$-nuclear interactions and $K^-$-nuclear quasi-bound states. The adopted $K^-$-nuclear optical potential consists of two parts -- the single-nucleon one constructed microscopically from chirally motivated $\bar{K}N$ amplitudes, and a phenomenological multi-nucleon one constrained in fits to kaonic atoms data. The inclusion of multi-nucleon absorption in our calculations of $K^{-}$ quasi-bound states in many-body systems leads to huge widths, considerably exceeding the binding energies. If this feature is confirmed the observation of such states is unlikely. Finally, a development of a new microscopical model for in-medium $K^-NN$ absorption is discussed as well.
