Observation of a γ -decaying millisecond isomeric state in 128 Cd 80

Jungclaus, A, Grawe, H, Nishimura, S, Doornenbal, P, Lorusso, G, Simpson, GS, Söderström, P-A, Sumikama, T, Taprogge, J, Xu, ZY et al, Baba, H, Browne, F, Fukuda, N, Gernhäuser, R, Gey, G, Inabe, N, Isobe, T, Jung, HS, Kameda, D, Kim, GD, Kim, Y-K, Kojouharov, I, Kubo, T, Kurz, N, Kwon, YK, Liang, Z, Sakurai, H, Schaffner, H, Shimizu, Y, Steiger, K, Suzuki, H, Takeda, H, Vajta, Zs, Watanabe, H, Wu, J, Yagi, A, Yoshinaga, K, Benzoni, G, Bönig, S, Chae, KY, Coraggio, L, Daugas, J-M, Drouet, F, Gadea, A, Gargano, A, Ilieva, S, Itaco, N, Kondev, FG, Kröll, T, Lane, GJ, Montaner-Pizá, A, Moschner, K, Mücher, D, Naqvi, F, Niikura, M, Nishibata, H, Odahara, A, Orlandi, R, Patel, Z, Podolyak, Zsolt and Wendt, A (2017) Observation of a γ -decaying millisecond isomeric state in 128 Cd 80 Physics Letters B, 772. pp. 483-488.

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Abstract

A new high-spin isomer in the neutron-rich nucleus 128Cd was populated in the projectile fission of a 238U beam at the Radioactive Isotope Beam Factory at RIKEN. A half-life of T1/2=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 129Cd. 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 0h11/2 and the 0g9/2 orbit, respectively, which is predicted to exist by the shell model.

Item Type:	Article
Divisions :	Faculty of Engineering and Physical Sciences > Physics
Authors :	Name Email ORCID Jungclaus, A Grawe, H Nishimura, S Doornenbal, P Lorusso, G Simpson, GS Söderström, P-A Sumikama, T Taprogge, J Xu, ZY Baba, H Browne, F Fukuda, N Gernhäuser, R Gey, G Inabe, N Isobe, T Jung, HS Kameda, D Kim, GD Kim, Y-K Kojouharov, I Kubo, T Kurz, N Kwon, YK Liang, Z Sakurai, H Schaffner, H Shimizu, Y Steiger, K Suzuki, H Takeda, H Vajta, Zs Watanabe, H Wu, J Yagi, A Yoshinaga, K Benzoni, G Bönig, S Chae, KY Coraggio, L Daugas, J-M Drouet, F Gadea, A Gargano, A Ilieva, S Itaco, N Kondev, FG Kröll, T Lane, GJ Montaner-Pizá, A Moschner, K Mücher, D Naqvi, F Niikura, M Nishibata, H Odahara, A Orlandi, R Patel, Z Podolyak, Zsolt Z.Podolyak@surrey.ac.uk Wendt, A
Date :	4 July 2017
DOI :	10.1016/j.physletb.2017.07.006
Copyright Disclaimer :	© 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Uncontrolled Keywords :	Isomeric decaysShell model calculationsTransition strengths
Depositing User :	Melanie Hughes
Date Deposited :	08 Aug 2017 12:14
Last Modified :	16 Jan 2019 18:54
URI:	http://epubs.surrey.ac.uk/id/eprint/841857

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