Title: Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40
Authors: Stefanescu, I ×
Georgiev, G
Balabanski, D. L
Blasi, N
Blazhev, A
Bree, Nick
Cederkaell, J
Cocolios, Thomas Elias
Davinson, T
Diriken, Jan
Eberth, J
Ekstroem, A
Fedorov, D
Fedosseev, V. N
Fraile, L. M
Franchoo, S
Gladnishki, K
Huyse, Marc
Ivanov, Oleg
Ivanov, V
Iwanicki, J
Jolie, J
Konstantinopoulos, T
Kroell, Th
Kruecken, R
Koester, U
Lagoyannis, A
Lo Bianco, G
Maierbeck, P
Marsh, B. A
Napiorkowski, P
Patronis, Nikolaos
Pauwels, D
Rainovski, G
Reiter, P
Riisager, K
Seliverstov, M
Sletten, G
Van de Walle, J
Van Duppen, Piet
Voulot, D
Warr, N
Wenander, F
Wrzosek, K #
Issue Date: Mar-2008
Publisher: Amer physical soc
Series Title: Physical Review Letters vol:100 issue:11 pages:1-5
Article number: 112502
Abstract: Collective properties of the low-lying levels in the odd-A Cu67-73 were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99 MeV/u. In Cu-67,Cu-69, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In Cu-71,Cu-73, besides the known transitions deexciting the single-particle-like 5/2(-) and core-coupled 7/2(-) levels, gamma rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of beta-decay work and comparison with the systematics, a spin 1/2(-) is suggested for these excited states. Three B(E2) values were determined in each of the four isotopes. The results indicate a significant change in the structure of the odd-A Cu isotopes beyond N=40 where single-particle-like and collective levels are suggested to coexist at very low excitation energies.
ISSN: 0031-9007
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Nuclear and Radiation Physics Section
× corresponding author
# (joint) last author

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