New Neutron-Proton Single-Particle Mode and Collective Excitations in 134La
New Neutron-Proton Single-Particle Mode and Collective Excitations in 134La
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134La 中的新中子-质子单粒子模式和集体激发
DOI：
10.1143/ptp.113.1139
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发表时间：
2005
影响因子：
--
通讯作者：
N. Yoshinaga
中科院分区：
文献类型：
--
作者：
K. Higashiyama;N. Yoshinaga
在对截断壳模型的框架下研究了奇奇核134 La中基于ν h 11/2 <$π h 11/2组态的yrast和yrare态.该模型精确地再现了实验上的yrast态的能级和能级比B（M1;I → I− 1）/B（E2;I→I− 2）。结果表明，yrast和yrare态可以用ΔI= 2 E2带来分类，这些带由一个未成对中子和一个未成对质子的不同角动量组态组成，与偶-偶核的四极集体激发弱耦合。
The yrast and yrare states based on theνh11/2⊗πh11/2configuration in the odd-odd nucleus134La are investigated within the framework of a pair-truncated shell model. The model accurately reproduces the experimental energy levels and ratiosB(M1;I → I− 1) /B(E2;I→I− 2) of the yrast states. It turns out that the yrast and yrare states can be classified in terms ofΔI= 2E2 bands that are composed of different angular momentum configurations of an unpaired neutron and an unpaired proton, weakly coupled with the quadrupole collective excitations of the even-even core.