Highly anomalous yrast B(E2) values and vibrational collectivity
Highly anomalous yrast B(E2) values and vibrational collectivity
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高度异常的 yrast B(E2) 值和振动集体
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
N. Warr
中科院分区：
文献类型：
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作者：
R. Cakirli;R. Casten;J. Jolie;N. Warr
It is shown that the existing yrast $B(E2)$ values [especially the $B(E2;{4}_{1}^{+}ensuremath{
ightarrow}{2}_{1}^{+})∕B(E2;{2}_{1}^{+}ensuremath{
ightarrow}{0}_{1}^{+})$ ratio] in $^{98}mathrm{Ru}$ are highly anomalous and cannot be plausibly interpreted with existing models. A survey of all even-even nuclei from $40ensuremath{leqslant}Zensuremath{leqslant}80$ shows that this phenomenon is rare in collective nuclei. It occurs to a much lesser extent in $^{114}mathrm{Te}$, $^{114}mathrm{Xe}$, and possibly a few other nuclides. The combination of vibrational-like energies and nonvibrational $B(E2)$ values perhaps points to a different kind of vibrational behavior.
It is shown that the existing yrast $B(E2)$ values [especially the $B(E2;{4}_{1}^{+}ensuremath{
ightarrow}{2}_{1}^{+})∕B(E2;{2}_{1}^{+}ensuremath{
ightarrow}{0}_{1}^{+})$ ratio] in $^{98}mathrm{Ru}$ are highly anomalous and cannot be plausibly interpreted with existing models. A survey of all even-even nuclei from $40ensuremath{leqslant}Zensuremath{leqslant}80$ shows that this phenomenon is rare in collective nuclei. It occurs to a much lesser extent in $^{114}mathrm{Te}$, $^{114}mathrm{Xe}$, and possibly a few other nuclides. The combination of vibrational-like energies and nonvibrational $B(E2)$ values perhaps points to a different kind of vibrational behavior.