Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40

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

doi:10.1103/PhysRevLett.100.112502

Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40

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. IvanovJ. 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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Abstract

Collective properties of the low-lying levels in the odd-A Cu67â€"73 were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99MeV/u. In Cu67,69, low-lying 1/2-, 5/2-, and 7/2- states were populated. In Cu71,73, besides the known transitions deexciting the single-particle-like 5/2- and core-coupled 7/2- levels, Î rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of Î-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. © 2008 The American Physical Society.

Original language	English
Article number	112502
Journal	Physical Review Letters
Volume	100
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.100.112502
Publication status	Published - 21 Mar 2008

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Stefanescu, I., Georgiev, G., Balabanski, D. L., Blasi, N., Blazhev, A., Bree, N., Cederkäll, J., Cocolios, T. E., Davinson, T., Diriken, J., Eberth, J., Ekström, A., Fedorov, D., Fedosseev, V. N., Fraile, L. M., Franchoo, S., Gladnishki, K., Huyse, M., Ivanov, O., ... Wrzosek, K. (2008). Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40. Physical Review Letters, 100(11), Article 112502. https://doi.org/10.1103/PhysRevLett.100.112502

@article{9c41a8bd25504fa4a79fab8176c3fe40,

title = "Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40",

abstract = "Collective properties of the low-lying levels in the odd-A Cu67{\^a}€{"}73 were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99MeV/u. In Cu67,69, low-lying 1/2-, 5/2-, and 7/2- states were populated. In Cu71,73, besides the known transitions deexciting the single-particle-like 5/2- and core-coupled 7/2- levels, {\^I} rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of {\^I}-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. {\textcopyright} 2008 The American Physical Society.",

author = "I. Stefanescu and G. Georgiev and Balabanski, {D. L.} and N. Blasi and A. Blazhev and N. Bree and J. Cederk{\"a}ll and Cocolios, {T. E.} and T. Davinson and J. Diriken and J. Eberth and A. Ekstr{\"o}m and D. Fedorov and Fedosseev, {V. N.} and Fraile, {L. M.} and S. Franchoo and K. Gladnishki and M. Huyse and O. Ivanov and V. Ivanov and J. Iwanicki and J. Jolie and T. Konstantinopoulos and Th Kr{\"o}ll and R. Kr{\"u}cken and U. K{\"o}ster and A. Lagoyannis and {Lo Bianco}, G. and P. Maierbeck and Marsh, {B. A.} and P. Napiorkowski and N. Patronis and D. Pauwels and G. Rainovski and P. Reiter and K. Riisager and M. Seliverstov and G. Sletten and {Van De Walle}, J. and {Van Duppen}, P. and D. Voulot and N. Warr and F. Wenander and K. Wrzosek",

year = "2008",

month = mar,

day = "21",

doi = "10.1103/PhysRevLett.100.112502",

language = "English",

volume = "100",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "11",

}

Stefanescu, I, Georgiev, G, Balabanski, DL, Blasi, N, Blazhev, A, Bree, N, Cederkäll, J, Cocolios, TE, Davinson, T, Diriken, J, Eberth, J, Ekström, A, Fedorov, D, Fedosseev, VN, Fraile, LM, Franchoo, S, Gladnishki, K, Huyse, M, Ivanov, O, Ivanov, V, Iwanicki, J, Jolie, J, Konstantinopoulos, T, Kröll, T, Krücken, R, Köster, U, Lagoyannis, A, Lo Bianco, G, Maierbeck, P, Marsh, BA, Napiorkowski, P, Patronis, N, Pauwels, D, Rainovski, G, Reiter, P, Riisager, K, Seliverstov, M, Sletten, G, Van De Walle, J, Van Duppen, P, Voulot, D, Warr, N, Wenander, F & Wrzosek, K 2008, 'Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40', Physical Review Letters, vol. 100, no. 11, 112502. https://doi.org/10.1103/PhysRevLett.100.112502

TY - JOUR

T1 - Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40

AU - Stefanescu, I.

AU - Georgiev, G.

AU - Balabanski, D. L.

AU - Blasi, N.

AU - Blazhev, A.

AU - Bree, N.

AU - Cederkäll, J.

AU - Cocolios, T. E.

AU - Davinson, T.

AU - Diriken, J.

AU - Eberth, J.

AU - Ekström, A.

AU - Fedorov, D.

AU - Fedosseev, V. N.

AU - Fraile, L. M.

AU - Franchoo, S.

AU - Gladnishki, K.

AU - Huyse, M.

AU - Ivanov, O.

AU - Ivanov, V.

AU - Iwanicki, J.

AU - Jolie, J.

AU - Konstantinopoulos, T.

AU - Kröll, Th

AU - Krücken, R.

AU - Köster, U.

AU - Lagoyannis, A.

AU - Lo Bianco, G.

AU - Maierbeck, P.

AU - Marsh, B. A.

AU - Napiorkowski, P.

AU - Patronis, N.

AU - Pauwels, D.

AU - Rainovski, G.

AU - Reiter, P.

AU - Riisager, K.

AU - Seliverstov, M.

AU - Sletten, G.

AU - Van De Walle, J.

AU - Van Duppen, P.

AU - Voulot, D.

AU - Warr, N.

AU - Wenander, F.

AU - Wrzosek, K.

PY - 2008/3/21

Y1 - 2008/3/21

N2 - Collective properties of the low-lying levels in the odd-A Cu67â€"73 were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99MeV/u. In Cu67,69, low-lying 1/2-, 5/2-, and 7/2- states were populated. In Cu71,73, besides the known transitions deexciting the single-particle-like 5/2- and core-coupled 7/2- levels, Î rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of Î-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. © 2008 The American Physical Society.

AB - Collective properties of the low-lying levels in the odd-A Cu67â€"73 were investigated by Coulomb excitation with radioactive beams. The beams were produced at ISOLDE and postaccelerated by REX-ISOLDE up to 2.99MeV/u. In Cu67,69, low-lying 1/2-, 5/2-, and 7/2- states were populated. In Cu71,73, besides the known transitions deexciting the single-particle-like 5/2- and core-coupled 7/2- levels, Î rays of 454 and 135 keV, respectively, were observed for the first time. Based on a reanalysis of Î-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. © 2008 The American Physical Society.

U2 - 10.1103/PhysRevLett.100.112502

DO - 10.1103/PhysRevLett.100.112502

M3 - Article

SN - 0031-9007

VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 112502

ER -

Interplay between single-particle and collective effects in the odd-A Cu isotopes beyond N=40

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