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Isomeric and ground-state properties of Pt-171(78), Os-167(76), and W-163(74)
KTH, School of Engineering Sciences (SCI), Physics.
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0003-1771-2656
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2010 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 81, no 1Article in journal (Refereed) Published
Abstract [en]

Decay paths, half-lives, and excitation energies of the i(13/2) bandheads of the neutron-deficient nuclei Pt-171, Os-167, and W-163 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 nu f(7/2), nu h(9/2), and nu i(13/2) quasineutron states for all three nuclei. Moreover, ground-state spin assignments have been made for the first time, along with the measurement of the alpha-decay branching ratio for Pt-171. The decay paths of the i(13/2) bandheads were followed by favored alpha decays, indicating that all three nuclei have the same I-pi = 7/2(-) ground state.

Place, publisher, year, edition, pages
2010. Vol. 81, no 1
Keyword [en]
neutron-deficient isotopes, filled recoil separator, gamma-ray, spectroscopy, total data readout, alpha-decay, great spectrometer, excited-states, nuclei, transition, identification
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-19160DOI: 10.1103/PhysRevC.81.014306ISI: 000274002700018ScopusID: 2-s2.0-75149120605OAI: diva2:337207
Swedish Research Council
QC 20110124Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2011-01-24Bibliographically approved

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