128 research outputs found
Projected shell model study of odd-odd f-p-g shell proton-rich nuclei
A systematic study of 2-quasiparticle bands of the proton-rich odd-odd nuclei
in the mass A ~ 70-80 region is performed using the projected shell model
approach. The study includes Br-, Rb-, and Y-isotopes with N = Z+2, and Z+4. We
describe the energy spectra and electromagnetic transition strengths in terms
of the configuration mixing of the angular-momentum projected
multi-quasiparticle states. Signature splitting and signature inversion in the
rotational bands are discussed and are shown to be well described. A
preliminary study of the odd-odd N = Z nucleus, 74Rb using the concept of
spontaneous symmetry breaking is also presented.Comment: 14 pages, 7 figures, final version accepted by Phys. Rev.
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