beta-decay studies approaching the N=20 island of inversion with a new shell-model Hamiltonian
beta-decay studies approaching the N=20 island of inversion with a new shell-model Hamiltonian
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使用新的壳模型哈密顿量逼近 N=20 反演岛的 beta 衰变研究
DOI：
10.1007/s11433-017-9032-6
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发表时间：
2017
影响因子：
6.4
通讯作者：
Hua Hui
中科院分区：
文献类型：
--
作者：
Jiang WeiGuang;Hu BaiShan;Xu FuRong;Han Rui;Hua Hui
用一种新的壳层模型哈密顿量分析了n=18-22，Z=10-14原子核的β衰变性质。Gogny力在平均场理论中得到了广泛而成功的应用，它为跨壳计算提供了合理的二体矩阵元。利用D1S-Gogny相互作用系统地研究了Logft值和β衰变能级方案，并与SDPF-M结果和实验数据进行了比较。结果表明，新的哈密顿量为β衰变以及该区域的精细能级格式提供了可靠的结果。具有Gogny相互作用的壳层模型计算可以成功地描述Then=20的反转和补充实验中没有足够数据的核及其周围的核。
β-decay properties ofN=18-22,Z=10-14 nuclei are analyzed with a new shell-model Hamiltonian using the Gogny density-dependent interaction. The Gogny force which has been widely and successfully used in mean-field theory can provide reasonable two-body matrix elements for cross-shell calculations. The logftvalues andβ-decay level schemes are systematically studied using the D1S-Gogny interaction and compared with the SDPF-M results and experimental data. It is shown that the new Hamiltonian provides reliable results forβ-decay along with subtle level schemes for this region. Shell-model calculations with Gogny interaction can lead to a successful description of nuclei in and around theN=20 island of inversion and supplements experiment where sufficient data are not available.