Nonempirical Interactions for the Nuclear Shell Model: An Update
Nonempirical Interactions for the Nuclear Shell Model: An Update
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DOI：
10.1146/annurev-nucl-101917-021120
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发表时间：
2019-02
影响因子：
12.4
通讯作者：
Steven Ragnar Stroberg;S. Bogner;H. Hergert;J. Holt
中科院分区：
文献类型：
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作者：
Steven Ragnar Stroberg;S. Bogner;H. Hergert;J. Holt
核壳层模型可能是理解原子核结构的最重要的概念和计算范例。虽然壳模型主要用于现象学背景下，已经有努力延伸到超过半个世纪，以获得壳模型参数的基础上的一个现实的核子之间的相互作用。最近，一些从头算多体方法，特别是多体微扰理论，无核壳模型，在介质中的相似重整化群，耦合集群理论，已经开发出提供有效的壳模型哈密顿量的能力。我们提供了这些方法的状态的更新，并调查它们之间的连接和它们的潜在的优势和劣势，特别侧重于在介质中的相似性重整化群方法。证明了三体力对于理解现象学治疗中所需的修改是重要的。然后，我们回顾了这些方法与最近的实验测量的比较的一些应用，并得出结论，在从头算壳模型理论的一些剩余的挑战。
The nuclear shell model has perhaps been the most important conceptual and computational paradigm for the understanding of the structure of atomic nuclei. While the shell model has been used predominantly in a phenomenological context, there have been efforts stretching back more than half a century to derive shell model parameters based on a realistic interaction between nucleons. More recently, several ab initio many-body methods—in particular, many-body perturbation theory, the no-core shell model, the in-medium similarity renormalization group, and coupled-cluster theory—have developed the capability to provide effective shell model Hamiltonians. We provide an update on the status of these methods and investigate the connections between them and their potential strengths and weaknesses, with a particular focus on the in-medium similarity renormalization group approach. Three-body forces are demonstrated to be important for understanding the modifications needed in phenomenological treatments. We then review some applications of these methods to comparisons with recent experimental measurements, and conclude with some remaining challenges in ab initio shell model theory.