Structure of collective bands and deformations in 74,76Kr
Structure of collective bands and deformations in 74,76Kr
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DOI：
10.1088/0954-3899/26/8/313
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发表时间：
2000-08
期刊：
影响因子：
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通讯作者：
K. Tripathy;R. Sahu
中科院分区：
文献类型：
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作者：
K. Tripathy;R. Sahu
在基于Hartree-Fock态的形变组态混合壳模型框架下，研究了74，76Kr的集体能带结构。活跃单粒子轨道为1p3/2、0f5/2、1p1/2和0g9/2，惰性核为56Ni。对上述配置空间使用了改进的Kuo交互。~(74)Kr原子核是氪同位素中形变最大的原子核，这与实验结果一致。~(76)Kr同位素的形变减小。对于两个原子核，计算的正负宇称带与实验符合得很好。还预测了一些激发带。我们还计算了B(E_2)值，并与现有的实验数据进行了比较。还研究了76Kr中K=4(+)强耦合带的结构。
The structure of collective bands in 74,76Kr is studied within the framework of the deformed configuration mixing shell model based on Hartree-Fock states. The active single-particle orbits are 1p3/2, 0f5/2, 1p1/2 and 0g9/2 with 56Ni as the inert core. A modified Kuo interaction has been used for the above configuration space. The 74Kr nucleus is found to be the most deformed nucleus among the krypton isotopes which is in agreement with experiment. The deformation is found to decrease for the 76Kr isotope. The calculated positive- and negative-parity bands agree quite well with the experiment for both the nuclei. A number of excited bands is also predicted. We have also calculated B(E2) values and compared them with available experimental data. The structure of the strongly coupled band built on K = 4( + ) in 76Kr is also studied.