Document Detail

Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40.
MedLine Citation:
PMID:  18517779     Owner:  NLM     Status:  PubMed-not-MEDLINE    
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, 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.
I Stefanescu; G Georgiev; D L Balabanski; N Blasi; A Blazhev; N Bree; J Cederkäll; T E Cocolios; T Davinson; J Diriken; J Eberth; A Ekström; D Fedorov; V N Fedosseev; L M Fraile; S Franchoo; K Gladnishki; M Huyse; O Ivanov; V Ivanov; J Iwanicki; J Jolie; T Konstantinopoulos; Th Kröll; R Krücken; U Köster; A Lagoyannis; G Lo Bianco; P Maierbeck; B A Marsh; P Napiorkowski; N Patronis; D Pauwels; G Rainovski; P Reiter; K Riisager; M Seliverstov; G Sletten; J Van de Walle; P Van Duppen; D Voulot; N Warr; F Wenander; K Wrzosek
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2008-03-21
Journal Detail:
Title:  Physical review letters     Volume:  100     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2008 Mar 
Date Detail:
Created Date:  2008-06-03     Completed Date:  2008-06-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  112502     Citation Subset:  -    
Instituut voor Kern- en Stralingsfysica, K.U. Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
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