Core-coupled states and split proton-neutron quasiparticle multiplets in 122 - 126 Ag
Core-coupled states and split proton-neutron quasiparticle multiplets in 122 - 126 Ag
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122 - 126 Ag 中的核心耦合态和分裂质子-中子准粒子多重态
DOI：
10.1103/physrevc.87.034308
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发表时间：
2013
影响因子：
3.1
通讯作者：
Lalkovski S
中科院分区：
文献类型：
--
作者：
Lalkovski S
丰中子银同位素在铀束的碎裂和铀的相对论裂变过程中被布居。使用GSI碎片分离器对碎片进行质量分析，随后植入被动止动器中。用105高纯锗探测器检测了异构体跃迁。在Ag核中观察到八种同质异能态。对Ag的能级图进行了修正和扩展，首次观察到了同质异能态跃迁。奇质量银同位素的激发态被解释为核耦合态。在质子-中子分裂多重态的框架下讨论了偶数质量银同位素的同质异能态。壳模型计算的结果，最富中子的银核进行比较的实验数据。
Neutron-rich silver isotopes were populated in the fragmentation of aXe beam and the relativistic fission ofU. The fragments were mass analyzed with the GSI Fragment Separator and subsequently implanted into a passive stopper. Isomeric transitions were detected by 105 high-purity germanium detectors. Eight isomeric states were observed inAg nuclei. The level schemes ofAg were revised and extended with isomeric transitions being observed for the first time. The excited states in the odd-mass silver isotopes are interpreted as core-coupled states. The isomeric states in the even-mass silver isotopes are discussed in the framework of the proton-neutron split multiplets. The results of shell-model calculations, performed for the most neutron-rich silver nuclei are compared to the experimental data.