Long-lived isomeric states and quasiparticle band structures in neutron-rich 162,164Gd nuclei from β decay
Long-lived isomeric states and quasiparticle band structures in neutron-rich 162,164Gd nuclei from β decay
复制标题
β衰变产生的富中子 162,164Gd 原子核中的长寿命异构态和准粒子能带结构
DOI：
10.1103/physrevc.103.014317
复制
发表时间：
2021
影响因子：
3.1
通讯作者：
M.
中科院分区：
文献类型：
--
作者：
E. H. Wang;J. M. Eldridge;N. T. Brewer;J. H. Hamilton;J. C. Batchelder;Y. X. Liu;Y. Sun;C. Brown;C. J. Zachary;B. M. Musangu;A. V. Ramayya;K. P. Rykaczewski;C. J. Gross;R. Grzywacz;M. Madurga;D. Miller;D. W. Stracener;C. Jost;E. F. Zganjar;J. A. Winger;M.
在橡树岭国家实验室的Holifield放射性离子束装置中，用质子束轰击靶，并对产物进行质量分离，从而产生富中子核。新的能级方案和新的子体射线跃迁被确定从衰变光谱研究。重新测量了半衰期，以澄清以前的模糊结果。建立了两个准粒子能带结构，并与相邻核进行了比较。两条带分别延长，两条带延长。在1449keV和1096keV处测得的同分异构态的半衰期分别为99（3）和0.56（3）。投影壳模型计算进行，并发现与所有的实验数据吻合良好。
Neutron-rich nucleiwere produced by bombarding a proton beam on atarget at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory and mass separating theproducts. New level schemes and new-ray transitions of the daughterswere identified from-decay spectroscopy studies. Half-lives of thewere remeasured to clarify the previous ambiguous results. Two quasiparticle band structures were built and compared with neighboring nuclei. Theandbands were extended inand aband was extended in. Half-lives of the isomeric states at () 1449 keV inand () 1096 keV inwere measured to be 99(3)and 0.56(3), respectively. Projected shell model calculations were performed and found to be in good agreement with all of the experimental data.