Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2003-10-31
Phys.Atom.Nucl. 67 (2004) 1611-1618; Yad.Fiz. 67 (2004) 1637-1644
Physics
Nuclear Physics
Nuclear Theory
8 pages, 6 figures, Proccedings of the International Conference "Nuclear Structure and Related Topics", Dubna, Russia, Septemb
Scientific paper
10.1134/1.1802346
Odd-odd nuclei around double shell closures are a direct source of information on the proton-neutron interaction between valence nucleons. We have performed shell-model calculations for doubly odd nuclei close to $^{208}$Pb, $^{132}$Sn and $^{100}$Sn using realistic effective interactions derived from the CD-Bonn nucleon-nucleon potential. The calculated results are compared with the available experimental data, attention being focused on particle-hole and particle-particle multiplets. While a good agreement is obtained for all the nuclei considered, a detailed analysis of the matrix elements of the effective interaction shows that a stronger core-polarization contribution seems to be needed in the particle-particle case.
Coraggio L.
Covello A.
Gargano A.
Itaco N.
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