Sub-nanosecond Half-life Measurement of the Yrast I{sup π}=5{sup −} State in the N=78 Nucleus {sup 136}{sub 58}Ce using Fast-timing Coincident Gamma-ray Spectroscopy
Journal Article
·
· Nuclear Data Sheets
- Department of Physics, University of Surrey, Guildford, GU2 7XH (United Kingdom)
- Horia Hulubei – National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest (Romania)
- School of Engineering, University of the West of Scotland, High Street, Paisley PA1 2BE (United Kingdom)
- School of Computing Engineering and Mathematics, University of Brighton, Brighton, BN2 4GJ (United Kingdom)
We report on the measurement of the half-life of the yrast I{sup π}=5{sup −} state in the transitional nucleus {sup 136}Ce using a combined HPGe-LaBr3(Ce) scintillator gamma-ray detection array. The measured value for the E1 decay is approximately half a nanosecond, which corresponds to an E1 decay strength of approximately 2×10{sup −6} Wu. This value is in line with single-particle type E1 decays in this mass region and suggests no sign of additional K-hindrance associated with axially symmetric quadrupole deformations observed for lighter cerium isotopes.
- OSTI ID:
- 22436685
- Journal Information:
- Nuclear Data Sheets, Vol. 120; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0090-3752
- Country of Publication:
- United States
- Language:
- English
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