Evidence for a Kπ = 1/2+ isomer in neutron-rich 185Ta

Evidence for a Kπ = 1/2+ isomer in neutron-rich 185Ta
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DOI：
10.1140/epja/i2007-10484-4
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发表时间：
2007-10
期刊：
The European Physical Journal A
影响因子：
--
通讯作者：
T. Shizuma;T. Ishii;H. Makii;Takehito Hayakawa;S. Shigematsu;S. Shigematsu;M. Matsuda;E. Ideguchi-E.-Ideguc
T. Shizuma;T. Ishii;H. Makii;Takehito Hayakawa;S. Shigematsu;S. Shigematsu;M. Matsuda;E. Ideguchi-E.-Ideguc
中科院分区：
其他
文献类型：
--
作者：
T. Shizuma;T. Ishii;H. Makii;Takehito Hayakawa;S. Shigematsu;S. Shigematsu;M. Matsuda;E. Ideguchi-E.-Ideguc

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Excited states in neutron-rich 185Ta have been populated following the one-proton pickup reaction of 186W (18O, 19F). In-beam γ-rays were measured in coincidence with scattered particles detected by a high-resolution ΔE-E Si telescope for reaction channel selection. Several low-lying levels including a T1/2= 0.9 (3) μs isomer at 406 keV have been identified. A spin assignment of I= 3/2 and the 1/2+[411] Nilsson configuration are given to the isomer in comparison with the level energy systematics and the isomer decay rates in the region.