Yrast structure of the neutron-rich N = 31 isotones 51Ca and 52Sc
Yrast structure of the neutron-rich N = 31 isotones 51Ca and 52Sc
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富中子 N = 31 同位素 51Ca 和 52Sc 的 Yrast 结构
DOI：
10.1103/physrevc.77.014304
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发表时间：
2008
影响因子：
3.1
通讯作者：
S. Zhu
中科院分区：
文献类型：
--
作者：
B. Fornal;R. Janssens;R. Broda;N. Mărginean;S. Beghini;L. Corradi;M. Carpenter;G. Angelis;F. D. Vedova;E. Farnea;E. Fioretto;A. Gadea;B. Guiot;M. Honma;W. Królas;T. Lauritsen;S. Lunardi;P. Mantica;P. Mason;G. Montagnoli;D. Napoli;T. Otsuka;T. Pawłat;G. Pollarolo;F. Scarlassara;A. Stefanini;D. Seweryniak;S. Szilner;C. Ur;M. Trotta;J. Valiente;J. Wrzesinski;S. Zhu
研究了51 Ca和52 Sc核的低激发态，获得了质子数Z = 20附近丰中子核中P1/2和f52中子单粒子轨道演化的信息.与中子激发到这两个轨道和质子激发跨越Z = 20壳隙的水平结构进行了鉴定。壳模型计算与最近提出的GXPF 1A相互作用帐户相当不错的FP壳状态。钙同位素中vp 1/2和vf 5/2轨道之间的能量分离似乎被GXPF 1A哈密顿量高估了。
The low-lying yrast states in the 51 Ca and 52 Sc nuclei were investigated to obtain information on the evolution of the P1/2 and f 5 / 2 neutron single-particle orbitals in neutron-rich nuclei near proton number Z = 20. Level structures associated with neutron excitations into these two orbitals and with proton excitations across the Z = 20 shell gap were identified. Shell-model calculations with the recently proposed GXPF1A interaction account reasonably well for the fp-shell states. The energy separation between the vp1/2 and vf5/2 orbitals in the Ca isotopes appears to be overestimated by the GXPF1A Hamiltonian.