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. Cederkaell; T. E. Cocolios; T. Davinson; J. Diriken; J. Eberth; A. Ekstroem; 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. Kroell; R. Kruecken; U. Koester; 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. Cederkaell
, T. E. Cocolios
, T. Davinson
, J. Diriken
, J. Eberth
, A. Ekstroem
, 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. Kroell, R. Kruecken, U. Koester, 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

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

Collective properties of the low-lying levels in the odd-A (67-73)Cu 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 (67,69)Cu, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In (71,73)Cu, 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.

Original language	Undefined/Unknown
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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10.1103/PhysRevLett.100.112502

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Stefanescu, I., Georgiev, G., Balabanski, D. L., Blasi, N., Blazhev, A., Bree, N., Cederkaell, J., Cocolios, T. E., Davinson, T., Diriken, J., Eberth, J., Ekstroem, 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). https://doi.org/10.1103/PhysRevLett.100.112502

@article{0c181ee2875e489b9591d96f9beb7c9d,

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 (67-73)Cu 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 (67,69)Cu, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In (71,73)Cu, 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.",

author = "I. Stefanescu and G. Georgiev and Balabanski, \{D. L.\} and N. Blasi and A. Blazhev and N. Bree and J. Cederkaell and Cocolios, \{T. E.\} and T. Davinson and J. Diriken and J. Eberth and A. Ekstroem 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. Kroell and R. Kruecken and U. Koester 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 = "Undefined/Unknown",

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, Cederkaell, J, Cocolios, TE, Davinson, T, Diriken, J, Eberth, J, Ekstroem, A, Fedorov, D, Fedosseev, VN, Fraile, LM, Franchoo, S, Gladnishki, K, Huyse, M, Ivanov, O, Ivanov, V, Iwanicki, J, Jolie, J, Konstantinopoulos, T, Kroell, T, Kruecken, R, Koester, 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. 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 - Cederkaell, J.

AU - Cocolios, T. E.

AU - Davinson, T.

AU - Diriken, J.

AU - Eberth, J.

AU - Ekstroem, 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 - Kroell, Th.

AU - Kruecken, R.

AU - Koester, 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 (67-73)Cu 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 (67,69)Cu, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In (71,73)Cu, 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.

AB - Collective properties of the low-lying levels in the odd-A (67-73)Cu 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 (67,69)Cu, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In (71,73)Cu, 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.

UR - https://www.scopus.com/pages/publications/41449116210

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

ER -

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

Abstract

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