Two-hole structure outside 78Ni: Existence of a μs isomer of 76Co and β decay into 76Ni
Two-hole structure outside 78Ni: Existence of a μs isomer of 76Co and β decay into 76Ni
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78Ni外部的两孔结构：76Co的μs异构体的存在以及β衰变成76Ni
DOI：
10.1103/physrevc.92.051305
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发表时间：
2015
影响因子：
3.1
通讯作者：
et al.
中科院分区：
文献类型：
--
作者：
P.-A. Soderstrom;S. Nishimura;Z.Y. Xu;K. Sieja;V. Werner;P. Doornenbal;G. Lorusso;F. Browne;G. Gey;H.S. Jung;T. Sumikama;J. Taprogge;Zs. Vajta;H. Watanabe;J. Wu;et al.
在旨在探索该区域的EURICA活动中，通过射线光谱学观察到了的同分异构态。这些原子核是由放射性同位素束工厂的正束飞行裂变产生的。我们观测到了由~* 的同质异能态衰变产生的~* 和~ keV的两条重合射线.同分异构体的衰变被归因于跃迁几率降低为W.在数据中还观察到自旋宇称和半衰期为ms的A-衰变态，并将半衰期为ms的已知态指定为自旋宇称为。此外，还重新测量了的异构体吨，给出了W.u.值。还观察到一个新的激发态，能量为keV，经2004.5（4）keV衰变。这与任何一个预测的状态是一致的。这些结果在壳模型和轨道的相互作用方面进行了讨论.
In the EURICA campaign aimed at exploration of theregion, an isomeric state ofhas been observed via-ray spectroscopy. The nuclei were produced by in-flight fission of abeam at the Radioactive Isotope-Beam Factory. Two coincidentrays ofandkeV from the decay of aisomeric state ofhave been observed. The decay of the isomer was assigned to antransition with a reduced transition probability ofW.u. A-decaying state with spin-parityand a half-life ofms was also observed in the data, and the known state with a half-life ofms was assigned to have a spin-parity of. Furthermore, the isomer ofhas been remeasured tons giving avalue ofW.u. A new excited state atkeV, decaying via aray of 2004.5(4) keV, has also been observed. This is in agreement with either of the predictedorstates. These results are discussed in terms of the shell model and the interaction of theandorbitals.