Establishing the ground-state spin of Kr71
Establishing the ground-state spin of Kr71
复制标题
建立 Kr71 的基态自旋
DOI：
10.1103/physrevc.106.044317
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发表时间：
2022
影响因子：
3.1
通讯作者：
Doucet, E. R.
中科院分区：
文献类型：
--
作者：
Waniganeththi, S.;Hoff, D. E.;Rogers, A. M.;Lister, C. J.;Bender, P. C.;Brandenburg, K.;Childers, K.;Clark, J. A.;Dombos, A. C.;Doucet, E. R.
在这条线附近的原子核提供了许多灵敏的同位旋对称性探针。其中一个例子是关于镜像对的低态的性质和顺序，这已经争论了几十年。在本文中，我们报告了一个新的测量绝对分支到基态和激发态，与我们的精确寿命，给出了一个超允许的基态到基态）值为3.64（4）。这只与和具有相同的自旋和宇称相一致，正如镜像对称所预期的那样。首次观察到了~延迟质子发射到第一激发态，这也有力地支持了这一分配。
Nuclei in the vicinity of theline provide many sensitive probes of isospin symmetry. One example concerns the character and sequence of low-lying states of themirror pairandwhich has been under debate for several decades. In this paper we report a new measurement of the absolute-branching to ground and excited states which, taken with our precise lifetime of, gives a superallowed ground state–to–ground state) value of 3.64(4). This is only consistent with bothandhaving the same spin and parity,, as expected from mirror symmetry. The-delayed proton emission to the first-excited state inwas observed for the first time which also strongly supports this assignment.