New Results on <sup>134</sup>Te From <sup>134</sup>Sb β-Decay

ORAL

Abstract

The ground-state decay of 134Sb (t1/2 = 0.78 ± 0.06s) is reported to be dominated by a 0- → 0+ first-forbidden Gamow-Teller transition to the 134Te ground state (Iβ = 97.6%, Qβ = 8.515 MeV). A previous recoil-ion time-of-flight (RI-TOF) spectroscopy measurement of 134Sb with the Beta-decay Paul Trap (BPT) indicated that the ground-state feeding of 134Te is weaker than reported. The RI-TOF results were reproduced with a subsequent simulation of 134Sb ground-state decays to a theorised 5-MeV state fed with ∼17% of the total β-decay strength. To search for higher energy states and transitions, the X-Array and Scintillator and Tape Using Radioactive Nuclei (SATURN) decay station were used to study 134g,mSb decay using beams from the Californium Rare Isotope Breeder Upgrade (CARIBU) at Argonne National Laboratory (ANL). The experimental details, analysis, and updated nuclear data information 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. This research used resources of ANL's ATLAS facility, which is a U.S. DOE Office of Science User Facility.

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Presenters

  • Graeme Morgan

    • Louisiana State University

Authors

  • Graeme Morgan

    • Louisiana State University

  • Scott T Marley

    • Louisiana State University

  • Patrick A Copp

    • Argonne National Laboratory

  • Michael P Carpenter

    • Argonne National Laboratory

  • Partha Chowdhury

    • University of Massachusetts Lowell

  • Daryl J Hartley

    • US Naval Academy

  • Heshani Jayatissa

    • Argonne National Laboratory
    • Los Alamos National Laboratory

  • Kay Kolos

    • LLNL

  • Filip G Kondev

    • Argonne National Laboratory

  • Sergio Lopez-Caceres

    • Louisiana State University

  • A.J. Mitchell

    • The Australian National University

  • Soumen Nandi

    • Argonne National Laboratory
    • ANL

  • Walter Reviol

    • ANL

  • Andrew M Rogers

    • University of Massachusetts Lowell

  • Dariusz Seweryniak

    • Argonne National Laboratory

  • Rachel M Shaffer

    • Louisiana State University

  • Barbara S Wang

    • Lawrence Livermore National Laboratory

  • Sanjanee W Waniganeththi

    • University of Massachusetts Lowell

  • Gemma L Wilson

    • Louisiana State University

  • Sudarsan Balakrishnan

    • Rutgers University
    • Louisiana State University