SU(3)-guided realistic nucleon-nucleon interactions for large-scale calculations
SU(3)-guided realistic nucleon-nucleon interactions for large-scale calculations
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DOI：
10.1103/physrevc.103.044305
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发表时间：
2020-09
影响因子：
3.1
通讯作者：
G. Sargsyan;K. Launey;R. Baker;T. Dytrych;J. Draayer
中科院分区：
文献类型：
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作者：
G. Sargsyan;K. Launey;R. Baker;T. Dytrych;J. Draayer
我们检查核子-核子现实的相互作用，基于它们的SU(3)分解为SU(3)-对称分量。我们发现许多这些相互作用分量可以忽略不计，这反过来又使我们能够确定一个物理相关分量的子集，这些分量足以描述$^{12}$C中低洼状态的结构和相关的可观测值，如激发能、电四极跃迁和均方根半径。我们发现，将相互作用减少到SU(3)对称分量的一半或更多，得到的结果实际上与完整相互作用的从头计算相一致。此外，我们表明，虽然各种现实相互作用在SU(3)分解中有所不同，但它们的重整化有效对偶物表现出惊人的相似性和组成，可以与主要的核特征（如变形、配对、聚类和自旋轨道效应）联系起来。
We examine nucleon-nucleon realistic interactions, based on their SU(3) decomposition to SU(3)-symmetric components. We find that many of these interaction components are negligible, which, in turn, allows us to identify a subset of physically relevant components that are sufficient to describe the structure of low-lying states in $^{12}$C and related observables, such as excitation energies, electric quadrupole transitions and rms radii. We find that paring the interaction down to half of the SU(3)-symmetric components or more yields results that practically coincide with the corresponding ab initio calculations with the full interaction. In addition, we show that while various realistic interactions differ in their SU(3) decomposition, their renormalized effective counterparts exhibit a striking similarity and composition that can be linked to dominant nuclear features such as deformation, pairing, clustering, and spin-orbit effect.