COMPETING DECAY MODES OF A HIGH-SPIN ISOMER IN THE PROTON-UNBOUND NUCLEUS <SUP>158</SUP>Ta



Carroll, RJ, Page, RD, Joss, DT ORCID: 0000-0001-5763-8767, Uusitalo, J, Darby, IG, Andgren, K, Cederwall, B, Eeckhaudt, S, Grahn, T, Gray-Jones, C
et al (show 16 more authors) (2015) COMPETING DECAY MODES OF A HIGH-SPIN ISOMER IN THE PROTON-UNBOUND NUCLEUS <SUP>158</SUP>Ta. In: Zakopane Conference on Nuclear Physics “Extremes of the Nuclear Landscape”, 2016-8-31 - 2014-9-7, Zakopane, Poland..

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Abstract

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 11h. In this paper, additional evidence supporting the assignment of this α decay to the high-spin isomer in 158Ta will be presented.

Item Type: Conference or Workshop Item (Unspecified)
Depositing User: Symplectic Admin
Date Deposited: 03 Aug 2016 07:32
Last Modified: 17 Oct 2023 00:58
DOI: 10.5506/APhysPolB.46.695
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URI: https://livrepository.liverpool.ac.uk/id/eprint/3002716