Enhanced quadrupole collectivity at N = 40: the case of neutron-rich Fe isotopes.
Enhanced quadrupole collectivity at N = 40: the case of neutron-rich Fe isotopes.
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N = 40 时四极集体性增强：富中子 Fe 同位素的情况
DOI：
10.1103/physrevlett.106.022502
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发表时间：
2011
影响因子：
8.6
通讯作者：
J. Jolie
中科院分区：
文献类型：
--
作者：
W. Rother;M. Hackstein;J. Jolie
利用应用于弹丸库仑激发反应的反冲距离多普勒频移技术研究了态的跃迁速率。推导出的强度说明富中子铁同位素的集体性增强到。结果是用价质子对称的广义概念来解释的，该概念描述了原子核结构的演化，它受价质子数的支配。实验数据表明的集体趋势用最先进的壳模型计算来描述，并为价空间开发了一种新的有效相互作用。
The transition rates for thestates inwere studied using the recoil distance Doppler-shift technique applied to projectile Coulomb excitation reactions. The deducedstrengths illustrate the enhanced collectivity of the neutron-rich Fe isotopes up to. The results are interpreted using the generalized concept of valence proton symmetry which describes the evolution of nuclear structure aroundas governed by the number of valence protons with respect to. The trend of collectivity suggested by the experimental data is described by state-of-the-art shell-model calculations with a new effective interaction developed for thevalence space.