Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z = 28 shell closure near 78Ni

R. P. De Groote; Jonathan Billowes; Cory Binnersley; Mark Bissell; T.E. Cocolios; T. Day Goodacre; G. J. Farooq-Smith; D V Fedorov; Kieran Flanagan; S. Franchoo; Ronald Garcia Ruiz; A Koszorus; Kara Lynch; G. Neyens; F. Nowacki; T. Otsuka; S. Rothe; H H Stroke; Y. Tsunoda; A. R.  Vernon; K.D.A. Wendt; S G Wilkins; Z. Y. Xu; X. F. Yang

doi:10.1103/PhysRevC.96.041302

Dipole and quadrupole moments of ^73-78Cu as a test of the robustness of the Z = 28 shell closure near ⁷⁸Ni

R. P. De Groote, Jonathan Billowes, Cory Binnersley, Mark Bissell, T.E. Cocolios, T. Day Goodacre, G. J. Farooq-Smith, D V Fedorov, Kieran Flanagan, S. Franchoo, Ronald Garcia Ruiz, A Koszorus, Kara Lynch, G. Neyens, F. Nowacki, T. Otsuka, S. Rothe, H H Stroke, Y. Tsunoda, A. R. VernonK.D.A. Wendt, S G Wilkins, Z. Y. Xu, X. F. Yang

Nuclear Physics Group

Katholieke Universiteit Leuven

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

Abstract

Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich 76􀀀78Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic 73;75Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and 78 29Cu (N = 49) in particular, are used to investigate excitations of the assumed doubly-magic 78Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the Z = 28 shell gap between N 45 and N = 50, the magicity of Z = 28 and N = 50 is restored towards 78Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.

Original language	English
Article number	041302
Journal	Physical Review C
Volume	96
DOIs	https://doi.org/10.1103/PhysRevC.96.041302
Publication status	Published - 4 Oct 2017

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De Groote, R. P., Billowes, J., Binnersley, C., Bissell, M., Cocolios, T. E., Day Goodacre, T., Farooq-Smith, G. J., Fedorov, D. V., Flanagan, K., Franchoo, S., Garcia Ruiz, R., Koszorus, A., Lynch, K., Neyens, G., Nowacki, F., Otsuka, T., Rothe, S., Stroke, H. H., Tsunoda, Y., ... Yang, X. F. (2017). Dipole and quadrupole moments of ^73-78Cu as a test of the robustness of the Z = 28 shell closure near ⁷⁸Ni. Physical Review C, 96, Article 041302. https://doi.org/10.1103/PhysRevC.96.041302

@article{cba69d495b3748aea77378f8f88eb06b,

title = "Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z = 28 shell closure near 78Ni",

abstract = "Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich 76􀀀78Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic 73;75Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and 78 29Cu (N = 49) in particular, are used to investigate excitations of the assumed doubly-magic 78Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the Z = 28 shell gap between N 45 and N = 50, the magicity of Z = 28 and N = 50 is restored towards 78Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.",

author = "{De Groote}, {R. P.} and Jonathan Billowes and Cory Binnersley and Mark Bissell and T.E. Cocolios and {Day Goodacre}, T. and Farooq-Smith, {G. J.} and Fedorov, {D V} and Kieran Flanagan and S. Franchoo and {Garcia Ruiz}, Ronald and A Koszorus and Kara Lynch and G. Neyens and F. Nowacki and T. Otsuka and S. Rothe and Stroke, {H H} and Y. Tsunoda and Vernon, {A. R.} and K.D.A. Wendt and Wilkins, {S G} and Xu, {Z. Y.} and Yang, {X. F.}",

year = "2017",

month = oct,

day = "4",

doi = "10.1103/PhysRevC.96.041302",

language = "English",

volume = "96",

journal = "Physical Review C",

issn = "0556-2813",

publisher = "American Physical Society",

}

De Groote, RP, Billowes, J, Binnersley, C, Bissell, M, Cocolios, TE, Day Goodacre, T, Farooq-Smith, GJ, Fedorov, DV, Flanagan, K, Franchoo, S, Garcia Ruiz, R, Koszorus, A, Lynch, K, Neyens, G, Nowacki, F, Otsuka, T, Rothe, S, Stroke, HH, Tsunoda, Y, Vernon, AR, Wendt, KDA, Wilkins, SG, Xu, ZY & Yang, XF 2017, 'Dipole and quadrupole moments of ^73-78Cu as a test of the robustness of the Z = 28 shell closure near ⁷⁸Ni', Physical Review C, vol. 96, 041302. https://doi.org/10.1103/PhysRevC.96.041302

TY - JOUR

T1 - Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z = 28 shell closure near 78Ni

AU - De Groote, R. P.

AU - Billowes, Jonathan

AU - Binnersley, Cory

AU - Bissell, Mark

AU - Cocolios, T.E.

AU - Day Goodacre, T.

AU - Farooq-Smith, G. J.

AU - Fedorov, D V

AU - Flanagan, Kieran

AU - Franchoo, S.

AU - Garcia Ruiz, Ronald

AU - Koszorus, A

AU - Lynch, Kara

AU - Neyens, G.

AU - Nowacki, F.

AU - Otsuka, T.

AU - Rothe, S.

AU - Stroke, H H

AU - Tsunoda, Y.

AU - Vernon, A. R.

AU - Wendt, K.D.A.

AU - Wilkins, S G

AU - Xu, Z. Y.

AU - Yang, X. F.

PY - 2017/10/4

Y1 - 2017/10/4

N2 - Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich 76􀀀78Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic 73;75Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and 78 29Cu (N = 49) in particular, are used to investigate excitations of the assumed doubly-magic 78Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the Z = 28 shell gap between N 45 and N = 50, the magicity of Z = 28 and N = 50 is restored towards 78Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.

AB - Nuclear spins and precise values of the magnetic dipole and electric quadrupole moments of the ground-states of neutron-rich 76􀀀78Cu isotopes were measured using the Collinear Resonance Ionization Spectroscopy (CRIS) experiment at ISOLDE, CERN. The nuclear moments of the less exotic 73;75Cu isotopes were re-measured with similar precision, yielding values that are consistent with earlier measurements. The moments of the odd-odd isotopes, and 78 29Cu (N = 49) in particular, are used to investigate excitations of the assumed doubly-magic 78Ni core through comparisons with large-scale shell-model calculations. Despite the narrowing of the Z = 28 shell gap between N 45 and N = 50, the magicity of Z = 28 and N = 50 is restored towards 78Ni. This is due to weakened dynamical correlations, as clearly probed by the present moment measurements.

U2 - 10.1103/PhysRevC.96.041302

DO - 10.1103/PhysRevC.96.041302

M3 - Article

SN - 0556-2813

VL - 96

JO - Physical Review C

JF - Physical Review C

M1 - 041302

ER -

Dipole and quadrupole moments of 73-78Cu as a test of the robustness of the Z = 28 shell closure near 78Ni

Abstract

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Dipole and quadrupole moments of ^73-78Cu as a test of the robustness of the Z = 28 shell closure near ⁷⁸Ni