Competing Decay Modes of a High-spin Isomer in the Proton-unbound Nucleus 158Ta
Carroll, R.J., Page, R.D., Joss, D.T., Uusitalo, J., Darby, I.G., Andgren, K., Cederwall, B., Eeckhaudt, S., Grahn, T., Gray-Jones, C., Greenlees, P., Hadinia, B., Jones, P., Julin, R., Juutinen, S., Leino, M., Leppänen, A.-P., Nyman, M., O’Donnell, D., . . . Simpson, J. (2015). Competing Decay Modes of a High-spin Isomer in the Proton-unbound Nucleus 158Ta. Acta Physica Polonica B, 46(3), 695-698. https://doi.org/10.5506/APhysPolB.46.695
Julkaistu sarjassa
Acta Physica Polonica BPäivämäärä
2015Tekijänoikeudet
© the Authors, 2015. This is an open access article licensed under the terms of a Creative Commons Attribution 3.0 License. Funded by SCOAP3.
An isomeric state at high spin and excitation energy was recently observed
in the proton-unbound nucleus 158Ta. This state was observed to
decay by both α and γ decay modes. The large spin change required to decay
via γ-ray emission incurs a lifetime long enough for α decay to compete.
The α decay has an energy of 8644(11) keV, which is among the highest
observed in the region, a partial half-life of 440(70) µs and changes the
spin by 11~. In this paper, additional evidence supporting the assignment
of this α decay to the high-spin isomer in 158Ta will be presented.
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Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian UniversityISSN Hae Julkaisufoorumista
0587-4254Asiasanat
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