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

Abstract

The odd-odd nucleus 210Bi 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 ph9/2 ng9/2 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 neutron-proton multiplets in the 132Sn and 208Pb regions is discussed in connection with the effective interaction.

arXiv comment4 pages, 3 figures, 1 table, to be published on Physical Review C as a Rapid Communication

References in corpus (7)

• The high-precision, charge-dependent Bonn nucleon-nucleon potential (CD-Bonn)
• Low momentum nucleon-nucleon potential and shell model effective interactions
• Low momentum nucleon-nucleon potential and shell model effective interactions
• Shell-model Structure of Exotic 135Sb
• Structure of exotic nuclei around double shell closures
• Proton-neutron multiplets in exotic 134Sb: testing the shell-model effective interaction
• Proton-Neutron Interaction near Closed Shells

Cited by in corpus (7)

• Similarity of nuclear structure in 132Sn and 208Pb regions: proton-neutron multiplets
• Isomeric states close to doubly magic ${}^{132}$Sn studied with JYFLTRAP
• Study of neutron-rich calcium isotopes with a realistic shell-model interaction
• Systematic shell model study for $N=82$ and $N=126$ isotones and nuclear isomers
• Shell-model calculations in 132Sn and 208Pb regions with low-momentum interactions
• Low-lying states in near-magic odd-odd nuclei and the effective interaction
• Configuration Interactions Constrained by Energy Density Functionals