Decay Spectroscopy of <sup>134</sup>Sb with the X-Array and SATURN at CARIBU

ORAL

Abstract

The ground-state decay of 134Sb is reported to be dominated by a 0-→0+ first-forbidden Gamow-Teller transition to the 134Te ground state (Iβ = 97.6%, Qβ = 8.515MeV). In 2013, a campaign of recoil-ion time-of-flight (RI-TOF) spectroscopy measurements of β-delayed neutron precursors with the Beta-decay Paul Trap (BPT) used the 134Sb ground state decay as a calibrant for the detector system. Unexpectedly, analysis of the data from the BPT study indicated that the ground-state feeding of 134Te is weaker than reported with ∽17% of the overall β-decay strength feeding higher-energy transitions. To search for these transitions, the Scintillator and Tape Using Radioactive Nuclei (SATURN) decay station and X-Array were used in a study of 134Sb decay using radioactive beams produced by the Californium Rare Isotope Breeder Upgrade (CARIBU) at Argonne National Laboratory (ANL). A description of the experiment and preliminary results will be presented.

*The authors acknowledge the U.S. DOE Office of Science Award no. DE-SC0021315 [LSU], the U.S. DOE under grant no. DE-FG02-94ER40848 [UML], the U.S. DOE under contract nos. DE-AC02-06CH11357 [ANL] and DE-AC52-07NA27344 [LLNL], and International Technology Center Pacific (ITC-PAC) under contract no. FA520919PA138 [ANU] for supporting this work.

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Presenters

  • Graeme Morgan

    • Louisiana State University

Authors

  • Graeme Morgan

    • Louisiana State University

  • Scott T Marley

    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA

  • Patrick A Copp

    • Argonne National Laboratory

  • Balakrishnan Sudarsan

    • Louisiana State University

  • M. P Carpenter

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Partha Chowdhury

    • University of Massachusetts Lowell

  • D. J Hartley

    • US Naval Academy
    • Department of Physics, U. S. Naval Academy, Annapolis, Maryland 21402, USA

  • Heshani Jayatissa

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Kay Kolos

    • Lawrence Livermore National Laboratory
    • LLNL

  • Filip G Kondev

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Sergio Lopez-Caceres

    • Louisiana State University

  • A.J. Mitchell

    • The Australian National University

  • Claus Muller-Gatermann

    • ANL
    • Argonne National Laboratory

  • Soumen Nandi

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • W. Reviol

    • Argonne National Laboratory
    • ANL
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Andrew Rogers

    • University of Massachusetts Lowell
    • University of Massachusetts-Lowell

  • D. Seweryniak

    • Argonne National Laboratory
    • Physics Division, Argonne National Laboratory, Lemont, Illinois 60439, USA

  • Rachel M Shaffer

    • Louisiana State University

  • Barbara S Wang

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Sanjanee W Waniganeththi

    • University of Massachusetts Lowell

  • Gemma L Wilson

    • Louisiana State University
    • Department of Physics and Astronomy, Louisiana State University, Baton Rouge, Louisiana 70803, USA