Interplay between Single-Particle and Collective Effects in the Odd-ACu Isotopes beyondN=40 | Zendy

I. Ştefânescu | Zendy; G. Georgiev | Zendy; D. L. Balabanski | Zendy; N. Blasi | Zendy; A. Blazhev | Zendy; N. Bree | Zendy; J. Cederkäll | Zendy; T. E. Cocolios | Zendy; T. Davinson | Zendy; J. Diriken | Zendy; J. Eberth | Zendy; A. Ekström | Zendy; Д. В. Федоров | Zendy; V. N. Fedosseev | Zendy; L. M. Fraile | Zendy; S. Franchoo | Zendy; K. Gladnishki | Zendy; M. Huyse | Zendy; O. Ivanov | Zendy; V. S. Ivanov | Zendy; J. Iwanicki | Zendy; J. Jolie | Zendy; T. Konstantinopoulos | Zendy; Th. Kröll | Zendy; R. Krücken | Zendy; U. Köster | Zendy; A. Lagoyannis | Zendy; G. Bianco | Zendy; P. Maierbeck | Zendy; B. A. Marsh | Zendy; P. Napiorkowski | Zendy; N. Patronis | Zendy; D. Pauwels | Zendy; G. Rainovski | Zendy; P. Reiter | Zendy; K. Riisager | Zendy; M. D. Seliverstov | Zendy; G. Sletten | Zendy; J. Van de Walle | Zendy; P. Van Duppen | Zendy; D. Voulot | Zendy; N. Warr | Zendy; F. Wenander | Zendy; K. Wrzosek | Zendy

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Interplay between Single-Particle and Collective Effects in the Odd-ACu Isotopes beyondN=40

Author(s) -

I. Ştefânescu,

G. Georgiev,

D. L. Balabanski,

N. Blasi,

A. Blazhev,

N. Bree,

J. Cederkäll,

T. E. Cocolios,

T. Davinson,

J. Diriken,

J. Eberth,

A. Ekström,

Д. В. Федоров,

V. N. Fedosseev,

L. M. Fraile,

S. Franchoo,

K. Gladnishki,

M. Huyse,

O. Ivanov,

V. S. Ivanov,

J. Iwanicki,

J. Jolie,

T. Konstantinopoulos,

Th. Kröll,

R. Krücken,

U. Köster,

A. Lagoyannis,

G. Bianco,

P. Maierbeck,

B. A. Marsh,

P. Napiorkowski,

N. Patronis,

D. Pauwels,

G. Rainovski,

P. Reiter,

K. Riisager,

M. D. Seliverstov,

G. Sletten,

J. Van de Walle,

P. Van Duppen,

D. Voulot,

N. Warr,

F. Wenander,

K. Wrzosek

Publication year - 2008

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.100.112502

Subject(s) - excited state , physics , isotope , excitation , atomic physics , coulomb excitation , nuclear physics , quantum mechanics

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.

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