Isomeric and ground-state properties of 17178Pt, 16776Os, and 16374W

Scholey, C. et al. (2010) Isomeric and ground-state properties of 17178Pt, 16776Os, and 16374W. Physical Review C, 81(1), p. 14306. (doi: 10.1103/PhysRevC.81.014306)

Abstract

Decay paths, half-lives, and excitation energies of the i13/2 bandheads of the neutron-deficient nuclei Pt171, Os167, and W163 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 Pt171. 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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: O'Donnell, Dr David
• Authors: Scholey, C., Andgren, K., Bianco, L., Cederwall, B., Darby, I. G., Eeckhaudt, S., Ertürk, S., Hornillos, M. B. G., Grahn, T., Greenlees, P. T., Hadinia, B., Ideguchi, E., Jones, P., Joss, D. T., Julin, R., Juutinen, S., Ketelhut, S., Leino, M., Leppänen, A. -P., Nieminen, P., Niikura, M., Nyman, M., O'Donnell, D., Page, R. D., Pakarinen, J., Rahkila, P., Sarén, J., Sandzelius, M., Simpson, J., Sorri, J., Thomson, J., Uusitalo, J., and Venhart, M.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• Journal Name: Physical Review C
• Publisher: American Physical Society
• ISSN: 0556-2813
• ISSN (Online): 1089-490X