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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 , 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 :
NameEmailORCID
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, ZsoltZ.Podolyak@surrey.ac.uk
Wendt, A
Date : 12 July 2017
Identification Number : 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 : 08 Aug 2017 12:15
URI: http://epubs.surrey.ac.uk/id/eprint/841857

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