Long standing problem of 210Bi and the realistic proton-neutron effective interaction

被引：20

作者：

Coraggio, L. ^{[1
]}

Covello, A. ^{[1
,2
]}

Gargano, A. ^{[1
]}

Itaco, N. ^{[1
,2
]}

机构：

[1] Ist Nazl Fis Nucl, I-80126 Naples, Italy

[2] Univ Naples Federico II, Dipartimento Sci Fisiche, I-80126 Naples, Italy

来源：

PHYSICAL REVIEW C | 2007年 / 76卷 / 06期

关键词：

D O I：

10.1103/PhysRevC.76.061303

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The odd-odd nucleus Bi-210 is studied within the framework of the shell model using effective two-body matrix elements derived from the CD-Bonn nucleon-nucleon potential. The experimental energies of the proton-neutron multiplet pi h(9/2)nu g(9/2) are remarkably well reproduced by the theory, which accounts for the 1(-) state being the ground state instead of the 0(-) predicted by the Nordheim strong coupling rule. It is shown that the core-polarization effects are crucial to produce this inversion. The similarity between proton-neutron multiplets in the Sn-132 and Pb-208 regions is discussed in connection with the effective interaction.

引用

页数：4

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