Observation of a mu s isomer in In-134(49)85: Proton-neutron coupling "southeast" of Sn-132(50)82
Observation of a mu s isomer in In-134(49)85: Proton-neutron coupling "southeast" of Sn-132(50)82
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In-134(49)85 中 mu s 异构体的观察：Sn-132(50)82 的质子-中子耦合“东南”
DOI：
10.1103/physrevc.100.011302
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发表时间：
2019
影响因子：
3.1
通讯作者：
Dillmann I
中科院分区：
文献类型：
--
作者：
Phong V H;Lorusso G;Davinson T;Estrade A;Hall O;Liu J;Matsui K;Montes F;Nishimura S;Boso A;Regan P H;Shearman R;Xu Z Y;Agramunt J;Allmond J M;Ahn D S;Algora A;Baba H;Brewer N T;Bruno C G;Caballero Folch R;Calvino F;Wolinska Cichocka M;Cortes G;Dillmann I
本文报道了在单质子空穴、三中子粒子核中观测到的微秒同质异能态。感兴趣的原子核是由RIKEN放射性同位素束工厂的正束飞行裂变产生的。该异构体通过能量为56.7（1）keV的阵列减少，半衰期为。基于与壳模型计算的比较，我们将异构体解释为多重态的衰变，以降低的跃迁概率衰变到基态。对这种异构体的观测，以及目前对异构体衰变的工作中缺乏的证据，提供了一个在核图“东南”区域质子-中子相互作用的基准，在那里激发态的实验信息是稀疏的。
We report on the observation of a microsecond isomeric state in the single-proton-hole, three-neutron-particle nucleus. The nuclei of interest were produced by in-flight fission of abeam at the Radioactive Isotope Beam Factory at RIKEN. The isomer depopulates through aray of energy 56.7(1) keV and with a half-life of. Based on the comparison with shell-model calculations, we interpret the isomer as themember of themultiplet, decaying to theground state with a reduced-transition probability ofObservation of this isomer, and lack of evidence in the current work for aisomer decay in, provides a benchmark of the proton-neutron interaction in the region of the nuclear chart “southeast” of, where experimental information on excited states is sparse.