Evidence for nuclear shape coexistence in180Hg
Evidence for nuclear shape coexistence in180Hg
复制标题
180Hg 中核形状共存的证据
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
W. Schwab
中科院分区：
文献类型：
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作者：
R. Simon;K. Schmidt;F. Heßberger;S. Hlavac;M. Honusek;G. Münzenberg;H. Clerc;U. Gollerthan;W. Schwab
在NaI探测器阵列中观察到了辐射聚变反应中的γ衰变现象：90Zr+90Zr→180Hg+xγ。在180Hg的Yrast序列中，直到6+的状态被初步指定，这表明弱扁平和强长形核形状共存。这两个推断的形状之间的势能之差已降至约200keV，延续了在重的偶同位素188-182汞中观察到的下降趋势。
Theγ decay in the radiative fusion reaction90Zr+90Zr→180Hg+xγ has been observed in an array of NaI detectors. States up to 6+ in the yrast sequence of180Hg are tentatively assigned and suggest the coexistence of weakly oblate and strongly prolate nuclear shapes. The difference in potential energy between the two inferred shapes has dropped to about 200 keV, continuing the downward trend observed in the heavier even isotopes188–182Hg.