论文标题

光核理论

Theory of Halo Nuclei

论文作者

Hammer, H. -W.

论文摘要

光环核的特征是一些弱结合的晕核核和更紧密的核心。这种尺度的分离可以用晕核核的几种体制描述来利用,因为芯核不能解决核心的详细结构。我们提出了对光环核低能特性的有效(野外)理论的介绍。重点是具有S-Wave相互作用的光晕,通用性能最为明显。使用多重器系统的示例和EFIMOV效应作为光环核的通用结合机制来说明统一极限的特殊作用。突出显示了与超速原子和强子物理学的连接,并短暂触及了较高部分波,库仑力和核反应的延伸。

Halo nuclei are characterized by a few weakly bound halo nucleons and a more tightly bound core. This separation of scales can be exploited in a few-body description of halo nuclei, since the detailed structure of the core is not resolved by the halo nucleons. We present an introduction to the effective (field) theory for low-energy properties of halo nuclei. The focus is on halos with S-wave interactions for which universal properties are most pronounced. The special role of the unitary limit is illustrated using the example of multineutron systems and the Efimov effect as a universal binding mechanism for halo nuclei. Connections to ultracold atoms and hadron physics are highlighted and extensions to higher partial waves, Coulomb forces and nuclear reactions are briefly touched upon.

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