Parr, E, Smith, JF, Greenlees, PT, Auranen, K, Chapman, R, Cullen, DM, Grahn, T, Grocutt, L, Herzan, A, Herzberg, R-D et al (show 26 more authors)
(2020)
Excited states in <SUP>217</SUP>Ra populated in the α decay of <SUP>221</SUP>Th.
PHYSICAL REVIEW C, 102 (5).
054335-.
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Parr PRC 2020.pdf - Author Accepted Manuscript Download (1MB) | Preview |
Abstract
Fine structure in the +¦ decay of Th90221, populating excited states in Ra88217, was studied using +¦+¦-coincidence spectroscopy. Two +¦-decay branches from Th221 have been newly observed, with E+¦(keV)[b+¦(%)]=7951(8)[0.14(3)] and 8247(3)[1.51(12)], together with three previously known branches. Also, two new states in Ra217 were identified at E = 177 and 227 keV. The ground-state configurations of the odd-A, N = 131 transitional isotones above Pb208 are interpreted from their +¦-decay fine structure systematics and considered in terms of predictions using spherical shell and reflection-asymmetric models.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | 5106 Nuclear and Plasma Physics, 5110 Synchrotrons and Accelerators, 51 Physical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 14 Jan 2021 11:47 |
| Last Modified: | 21 Jun 2024 03:36 |
| DOI: | 10.1103/PhysRevC.102.054335 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/3111089 |
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