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; Joakim Cederkäll; T E Cocolios; T Davinson; J Diriken; J Eberth; Andreas 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 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, Joakim Cederkäll, T E Cocolios, T Davinson, J Diriken, J Eberth, Andreas 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 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

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Abstract

Collective properties of the low-lying levels in the odd-A Cu67-73 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 Cu-67,Cu-69, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In Cu-71,Cu-73, 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	English
Journal	Physical Review Letters
Volume	100
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.100.112502
Publication status	Published - 2008

Subject classification (UKÄ)

Subatomic Physics

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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., 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). https://doi.org/10.1103/PhysRevLett.100.112502

@article{e2f497c07e5d496d89276318c178e543,

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 Cu67-73 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 Cu-67,Cu-69, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In Cu-71,Cu-73, 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 Joakim Cederk{\"a}ll and Cocolios, {T E} and T Davinson and J Diriken and J Eberth and Andreas 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 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",

doi = "10.1103/PhysRevLett.100.112502",

language = "English",

volume = "100",

journal = "Physical Review Letters",

issn = "1079-7114",

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, 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 - Cederkäll, Joakim

AU - Cocolios, T E

AU - Davinson, T

AU - Diriken, J

AU - Eberth, J

AU - Ekström, Andreas

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

Y1 - 2008

N2 - Collective properties of the low-lying levels in the odd-A Cu67-73 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 Cu-67,Cu-69, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In Cu-71,Cu-73, 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 Cu67-73 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 Cu-67,Cu-69, low-lying 1/2(-), 5/2(-), and 7/2(-) states were populated. In Cu-71,Cu-73, 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.

U2 - 10.1103/PhysRevLett.100.112502

DO - 10.1103/PhysRevLett.100.112502

M3 - Article

C2 - 18517779

SN - 1079-7114

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

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