Low-energy Gamow-Teller transitions in deformed N=Z odd-odd nuclei
Low-energy Gamow-Teller transitions in deformed N=Z odd-odd nuclei
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变形 N=Z 奇奇核中的低能伽莫夫-特勒跃迁
DOI：
10.1103/physrevc.98.034307
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发表时间：
2018
影响因子：
3.1
通讯作者：
Kanada-En'yo Yoshiko
中科院分区：
文献类型：
--
作者：
Morita Hiroyuki;Kanada-En'yo Yoshiko
采用同位旋投影反对称化分子动力学结合生成坐标方法研究了~的Gamow-Teller（GT）跃迁。我们发现GT强度从分裂成两个末态，它们属于由一个长形变核和一个质子-中子（）对构成的带。对的内禀自旋与核形变的耦合在GT碎裂中起着重要的作用。本征自旋旋转中的对称破缺导致自旋对的对称破缺，导致GT碎裂。我们比较了GT跃迁的特征与文献[1]中的特征，并讨论了形变系统中对称性与GT碎裂之间的联系。
We investigated the Gamow-Teller (GT) transitions fromtoby applying the isospin projected antisymmetrized molecular dynamics combined with the generator coordinate method. We found that the GT strength fromis fragmented into two final states, which belong toandbands constructed by a prolately deformedcore with anproton-neutron () pair. Coupling of the intrinsic spin of thepair with the core deformation plays an important role in the GT fragmentation. The symmetry breaking in the intrinsic-spin rotation leads to thesymmetry breaking of thepair and causes the GT fragmentation. We compare the features of the GT transitions with those forand discuss the link between thesymmetry and the GT fragmentation in deformed systems.