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Phys. Rev. C 67, 014321 (2003) [7 pages]

Projected shell model study of odd-odd f-p-g shell proton-rich nuclei

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R. Palit1,2, J. A. Sheikh3, Y. Sun4,5,6,7, and H. C. Jain1
1Tata Institute of Fundamental Research, Mumbai 400 005, India
2Institut für Kernphysik, Johann Wolfgang Goethe Universität, D-60486 Frankfurt, Germany
3Physik-Department, Technische Universität München, D-85747 Garching, Germany
4Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996
5Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556
6Department of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
7Department of Physics, Xuzhou Normal University, Xuzhou, Jiangsu 221009, People’s Republic of China

Received 3 September 2002; published 31 January 2003

A systematic study of two-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.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.67.014321
DOI:
10.1103/PhysRevC.67.014321
PACS:
21.60.Cs, 21.10.Ky, 21.10.Re
 
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