CERN Accelerating science

Article
Title Interplay between Single-Particle and Collective Effects in the Odd-A Cu Isotopes beyond N=40
Author(s)

Stefanescu, I (Instituut voor Kern- en Stralingsfysica, Leuven, Belgium ; Horia-Hulubei Nat. Inst. Phys. Nucl. Eng., Bucharest, Romania) ; Georgiev, G ; Balabanski, D L ; Blasi, N ; Blazhev, A ; Bree, N ; Cederkäll, J (CERN) ; Cocolios, T E ; Davinson, T ; Diriken, J ; Eberth, J ; Ekström, A ; Fedorov, D ; Fedosseev, V (CERN) ; Fraile-Prieto, L M (CERN) ; Franchoo, S ; Gladnishki, K ; Huyse, M ; Ivanov, O ; Ivanov, I ; Iwanicki, J ; Jolie, J ; Konstantinopoulos, T ; Kröll, Th ; Krücken, R ; Köster, U (CERN) ; Lagoyannis, A ; Lo Bianco, G ; Maierbeck, P ; Marsh, B A (CERN) ; Napiorkowski, P ; Patronis, N ; Pauwels, D ; Rainovski, G ; Reiter, P (CERN) ; Riisager, K ; Seliverstov, M ; Sletten, G ; Van de Walle, J (CERN) ; Van Duppen, P ; Voulot, D (CERN) ; Warr, N ; Wenander, F (CERN) ; Wrzosek, K

Affiliation (Instituut voor Kern- en Stralingsfysica, Leuven, Belgium) ; (Horia-Hulubei National Inst. for Physics and Nuclear Engineering, Bucharest, Romania) ; (Univ. Paris-Sud, Orsay, France) ; (Univ. Camerino,Camerino, Italy) ; (INRNE, Sofia, Bulgaria) ; (KP, Univ. Cologne, Cologne, Germany) ; (Univ. Lund, Lund, Sweden) ; (Univ. Edinburgh, Edinburgh, United Kingdom) ; (Petersburg Nuclear Physics Institute, Gatchina, Russia) ; (IPN Orsay, Orsay Cedex, France) ; (Univ. Sofia, Sofia, Bulgaria) ; (Heavy Ion Laboratory, Warsaw Univ., Warsaw, Poland) ; (National Research Center Demokritos, Greece) ; (Technische Univ., München, Germany) ; (Inst. Laue Langevin, Grenoble, France) ; (Aarhus U.) ; (The Niels Bohr Institute, Univ. Copenhagen, Copenhagen, Denmark)
Publication 2008
In: Phys. Rev. Lett. 100 (2008) 112502
DOI 10.1103/PhysRevLett.100.112502
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN ISOLDE
Abstract Collective properties of the low-lying levels in the odd-A 67–73Cu 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 67,69Cu, low-lying 1/2-, 5/2-, and 7/2- states were populated. In 71,73Cu, besides the known transitions deexciting the single-particle-like 5/2- and core-coupled 7/2- levels, γ rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of β-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.

Corresponding record in: Inspire


 ჩანაწერი შექმნილია 2008-06-19, ბოლოს შესწორებულია 2018-09-24


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