Well developed deformation in 42Si.
Well developed deformation in 42Si.
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42Si 变形发达
DOI：
10.1103/physrevlett.109.182501
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发表时间：
2012
影响因子：
8.6
通讯作者：
S. Takeuchi
中科院分区：
文献类型：
--
作者：
S. Takeuchi
利用多核子去除反应的在束射线能谱研究了原子核的激发态。在RIKEN放射性同位素束工厂的新设施中提供的和的强放射性束使符合测量成为可能。在742（8）keV的能量下观察到的一条中心线证实了早期研究中报道的状态。在观测到的与跃迁相一致的谱线中，最可能的从γ态跃迁的候选者被确定，导致能量为2173（14）keV。和态之间的能量比为2.93（5），表明原子内部的形变较发达。能量比分别为2.09（5）和2.56（5）。结合δ的比值，结果表明，硅同位素在~期间有一个快速的变形发展过程。
Excited states innuclei have been studied via in-beam-ray spectroscopy with multinucleon removal reactions. Intense radioactive beams ofandprovided at the new facility of the RIKEN Radioactive Isotope Beam Factory enabledcoincidence measurements. A prominentline observed with an energy of 742(8) keV inconfirms thestate reported in an earlier study. Among thelines observed in coincidence with thetransition, the most probable candidate for the transition from the yraststate was identified, leading to aenergy of 2173(14) keV. The energy ratio of 2.93(5) between theandstates indicates well-developed deformation inatand. Also forenergy ratios with values of 2.09(5) and 2.56(5) were obtained. Together with the ratio for, the results show a rapid deformation development of Si isotopes fromto.