Probing structural changes in the very neutron-deficient Os isotopes with recoil-decay tagging

D. T. Joss, N. Amzal, D. E. Appelbe, T. Bäck, C. J. Barton, M. A. Bentley, B. Cederwall, J. F C Cocks, D. M. Cullen, S. Eeckhaudt, T. Grahn, P. T. Greenlees, B. Hadinia, K. Helariutta, P. M. Jones, R. Julin, S. Juutinen, H. Kankaanpää, A. Keenan, H. KettunenS. L. King, P. Kuusiniemi, K. Lagergren, M. Leino, A. P. Leppänen, M. Muikku, P. Nieminen, R. D. Page, J. Pakarinen, E. S. Paul, P. Rahkila, C. Scholey, A. Savelius, J. Simpson, M. J. Taylor, J. Uusitalo, S. J. Williams, D. D. Warner, D. R. Wiseman, R. Wyss

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    In recent years, the exploitation of the recoil-decay tagging (RDT) technique with large arrays of germanium detectors has revealed much information about the structure of heavy nuclei approaching the proton drip line. The yrast bands of the N ≤ 93 osmium isotopes have been identified in a campaign of tagging experiments using various spectrometer arrays coupled to the RITU gas-filled separator based at the University of Jyväskylä. Trends in the yrast state excitation energies have indicated a transition from γ-soft triaxial to near-spherical shapes with decreasing neutron number. Recent experimental results for 162Os obtained with the JUROGAM and GREAT spectrometers also indicate the importance of configurations involving the h9/2 neutron states as the N ≤ Z ≤ 82 shell gaps are approached. © 2005 IOP Publishing Ltd.
    Original languageEnglish
    Title of host publicationJournal of Physics G: Nuclear and Particle Physics|J. Phys. G Nucl. Part. Phys.
    PublisherIOP Publishing Ltd
    PagesS1593-S1598
    Volume31
    DOIs
    Publication statusPublished - 1 Oct 2005
    Event1st International Conference on Nuclear, Structure, Astrophysics and Reactions (NUSTAR 05) - Guildford, ENGLAND
    Duration: 1 Jan 1824 → …
    http://<Go to ISI>://000232575600017

    Conference

    Conference1st International Conference on Nuclear, Structure, Astrophysics and Reactions (NUSTAR 05)
    CityGuildford, ENGLAND
    Period1/01/24 → …
    Internet address

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