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Observation of a γ-decaying millisecond isomeric state in 128Cd80

AuthorsJungclaus, Andrea ; Taprogge, J. ; Watanabe, H.; Gadea, Andrés ; Gargano, A.; Montaner-Pizá, A. ; Orlandi, R. ; Patel, Z.; Podolyak, Zs.; Wendt, A.
KeywordsTransition strengths
Shell model calculations
Isomeric decays
Issue Date12-Jul-2017
CitationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 772: 483-488 (2017)
AbstractA new high-spin isomer in the neutron-rich nucleus Cd was populated in the projectile fission of a U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T=6.3(8) ms was measured for the new state which was tentatively assigned a spin/parity of (15). The experimental results are compared to shell model calculations performed using state-of-the-art realistic effective interactions and to the neighbouring nucleus Cd. In the present experiment no evidence was found for the decay of a 18 E6 spin-trap isomer, based on the complete alignment of the two-neutron and two-proton holes in the 0h and the 0g orbit, respectively, which is predicted to exist by the shell model.
DescriptionA. Jungclaus et al. -- 6 pags., 5 figs., 2 tabs. -- Open Access funded by Creative Commons Atribution Licence 4.0
Publisher version (URL)https://doi.org/10.1016/j.physletb.2017.07.006
Identifiersdoi: 10.1016/j.physletb.2017.07.006
issn: 0370-2693
Appears in Collections:(IFIC) Artículos
(CFMAC-IEM) Artículos
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