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

Journal Article · Sat Dec 15 04:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.061303· OSTI ID:21067952

Coraggio, L; Gargano, A ^[1]; Covello, A; Itaco, N ^[1]

---

1. Istituto Nazionale di Fisica Nucleare, Complesso Universitario di Monte S. Angelo, I-80126 Napoli (Italy)

The odd-odd nucleus {sup 210}Bi 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{sub 9/2}{nu}g{sub 9/2} are remarkably well reproduced by the theory, which accounts for the 1{sup -} state being the ground state instead of the 0{sup -} 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 {sup 132}Sn and {sup 208}Pb regions is discussed in connection with the effective interaction.

• OSTI ID: 21067952
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 6 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BISMUTH 210
GROUND STATES
LEAD 208
MATRIX ELEMENTS
MULTIPLETS
NEUTRONS
NUCLEAR STRUCTURE
NUCLEON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON POTENTIAL
POLARIZATION
PROTONS
SHELL MODELS
STRONG-COUPLING MODEL
TIN 132
TWO-BODY PROBLEM