Isomeric and ground-state properties of Pt-171(78), Os-167(76), and W-163(74)

C. Scholey, K. Andgren, L. Bianco, B. Cederwall, I. G. Darby, S. Eeckhaudt, S. Erturk, M. B. Gomez Hornillos, T. Grahn, P. T. Greenlees, B. Hadinia, E. Ideguchi, P. Jones, D. T. Joss, R. Julin, S. Juutinen, S. Ketelhut, M. Leino, A.-P. Leppanen, P. NieminenM. Niikura, M. Nyman, D. O'Donnell, R. D. Page, J. Pakarinen, P. Rahkila, J. Saren, M. Sandzelius, J. Simpson, J. Sorri, J. Thomson, J. Uusitalo, M. Venhart

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9 Citations (Scopus)


Decay paths, half-lives, and excitation energies of the i13/2 bandheads of the neutron-deficient nuclei 171Pt, 167Os, and 163W have been established for the first time. Gamma-ray transitions, X-rays, and internal conversion electrons have been observed, allowing internal-conversion coefficients to be measured and B(M2) reduced transition probabilities to be extracted. These results elucidate the low-lying single-quasiparticle structures and give the energy level spacings between the νf7/2, νh9/2, and νi13/2 quasineutron states for all three nuclei. Moreover, ground-state spin assignments have been made for the first time, along with the measurement of the α-decay branching ratio for 171Pt. The decay paths of the i13/2 bandheads were followed by favored α decays, indicating that all three nuclei have the same Iπ=7/2− ground state.
Original languageEnglish
Article number014306
JournalPhysical Review C
Issue number1
Publication statusPublished - 2010
Externally publishedYes


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