First observation of excited states in the 110Mo nucleus
First observation of excited states in the 110Mo nucleus
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首次观察到 110Mo 原子核的激发态
DOI：
10.1140/epja/i2004-10023-y
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
N. Schulz
中科院分区：
文献类型：
--
作者：
W. Urban;T. Rząca;J. Durell;W. Phillips;A. Smith;B. Varley;I. Ahmad;N. Schulz
摘要。首次观测到110Mo的基态带。在248Cm自发裂变中填充了6个能级的谱带，并利用EUROGAM2阵列对其进行了提示γ射线光谱研究。比值$E_{\rm exc}(4^ +)/ $E_{\rm exc}(2^ +)$表明，与108Mo相比，110Mo的变形较小，但在较高的中子数下可能会趋于稳定，形成扁圆形状。新数据表明，在中子数N = 64以上，Sr和Zr同位素的变形减小。
Abstract.The ground-state band in 110Mo has been observed for the first time. The band, comprising six levels, has been populated in the spontaneous fission of 248Cm and studied by means of prompt $\gamma$-ray spectroscopy using the EUROGAM2 array. The ratio $E_{\rm exc}(4^ + )/ E_{\rm exc}(2^ + )$ suggests that the deformation of 110Mo is smaller than that in 108Mo but may stabilize at higher neutron number, where an oblate shape is expected. The new data suggests that the deformation of Sr and Zr isotopes decreases above neutron number N = 64.