Probing the role of proton cross-shell excitations in Ni70 using nucleon knockout reactions
Probing the role of proton cross-shell excitations in Ni70 using nucleon knockout reactions
复制标题
使用核子敲除反应探讨 Ni70 中质子跨壳层激发的作用
DOI：
10.1103/physrevc.100.034317
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发表时间：
2019
影响因子：
3.1
通讯作者：
Carpenter, M. P.
中科院分区：
文献类型：
--
作者：
Elman, B.;Gade, A.;Janssens, R. V.;Ayangeakaa, A. D.;Bazin, D.;Belarge, J.;Bender, P. C.;Brown, B. A.;Campbell, C. M.;Carpenter, M. P.
近年来，富中子镍同位素因其形态或组态共存而备受关注。我们报道了分别从、和稀有同位素束中剔除单质子、单中子和双质子的跟随射线标记的激发末态布居的差异。利用在相对跃迁强度中观察到的变化，表示在不同反应中特定终态的变化，示意性地探讨了激发态中中子和质子组态的作用，目的是识别那些携带质子激发穿过壳层闭合的主导组态。在文献中，这种状态被认为形成了与拉长变形相关的集体结构。除了对的知识主体，报告了29个新的转变，其中15个被置于其级别方案中。
The neutron-rich Ni isotopes have attracted attention in recent years because of the occurrence of shape or configuration coexistence. We report on the difference in population of excited final states infollowing-ray tagged one-proton, one-neutron, and two-proton knockout from,, andrare-isotope beams, respectively. Using variations observed in the relative transition intensities, signaling the changed population of specific final states in the different reactions, the role of neutron and proton configurations in excited states ofis probed schematically, with the goal of identifying those that carry, as leading configuration, proton excitations across theshell closure. Such states are suggested in the literature to form a collective structure associated with prolate deformation. Adding to the body of knowledge for, 29 new transitions are reported, of which 15 are placed in its level scheme.