Sun, M.D., Liu, Z., Huang, T.H. et al. (29 more authors) (2020) Fine structure in the α decay of 223U. Physics Letters B. 135096. ISSN 0370-2693
Abstract
Fine structure in the α decay of 223U was observed in the fusion-evaporation reaction 187Re(40Ar, p3n) by using fast digital pulse processing technique. Two α-decay branches of 223U feeding the ground state and 244 keV excited state of 219Th were identified by establishing the decay chain 223U →α1 219Th →α2 215Ra →α3 211Rn. The α-particle energy for the ground-state to ground-state transition of 223U was determined to be 8993(17) keV, 213 keV higher than the previous value, the half-life was updated to be 62−10+14 μs. Evolution of nuclear structure for N = 131 even-Z isotones from Po to U was discussed in the frameworks of nuclear mass and reduced α-decay width, a weakening octupole deformation in the ground state of 223U relative to its lighter isotones 219Ra and 221Th was suggested.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2019 The Author(s) | ||||||
Keywords: | Fine structure, decay, Spin and parity, Reduced -decay width, Quadrupole-octupole deformation | ||||||
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Institution: | The University of York | ||||||
Academic Units: | The University of York > Faculty of Sciences (York) > Computer Science (York) The University of York > Faculty of Sciences (York) > Mathematics (York) The University of York > Faculty of Sciences (York) > Chemistry (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Biology (York) |
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Funding Information: |
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Depositing User: | Pure (York) | ||||||
Date Deposited: | 22 Nov 2019 11:40 | ||||||
Last Modified: | 04 Feb 2024 01:03 | ||||||
Published Version: | https://doi.org/10.1016/j.physletb.2019.135096 | ||||||
Status: | Published | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1016/j.physletb.2019.135096 | ||||||
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Description: Finestructureintheαdecayof223U
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