Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away

A. Welker; N. A.S. Althubiti; D. Atanasov; K. Blaum; T. E. Cocolios; F. Herfurth; S. Kreim; D. Lunney; V. Manea; M. Mougeot; D. Neidherr; F. Nowacki; A. Poves; M. Rosenbusch; L. Schweikhard; F. Wienholtz; R. N. Wolf; K. Zuber

doi:10.1103/PhysRevLett.119.192502

Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away

A. Welker^*, N. A.S. Althubiti, D. Atanasov, K. Blaum, T. E. Cocolios, F. Herfurth, S. Kreim, D. Lunney, V. Manea, M. Mougeot, D. Neidherr, F. Nowacki, A. Poves, M. Rosenbusch, L. Schweikhard, F. Wienholtz, R. N. Wolf, K. Zuber

^*Corresponding author for this work

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

Abstract

The masses of the neutron-rich copper isotopes Cu75-79 are determined using the precision mass spectrometer ISOLTRAP at the CERN-ISOLDE facility. The trend from the new data differs significantly from that of previous results, offering a first accurate view of the mass surface adjacent to the Z=28, N=50 nuclide Ni78 and supporting a doubly magic character. The new masses compare very well with large-scale shell-model calculations that predict shape coexistence in a doubly magic Ni78 and a new island of inversion for Z<28. A coherent picture of this important exotic region begins to emerge where excitations across Z=28 and N=50 form a delicate equilibrium with a spherical mean field.

Original language	English
Article number	192502
Journal	Physical Review Letters
Volume	119
Issue number	19
DOIs	https://doi.org/10.1103/PhysRevLett.119.192502
Publication status	Published - 6 Nov 2017

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Welker, A., Althubiti, N. A. S., Atanasov, D., Blaum, K., Cocolios, T. E., Herfurth, F., Kreim, S., Lunney, D., Manea, V., Mougeot, M., Neidherr, D., Nowacki, F., Poves, A., Rosenbusch, M., Schweikhard, L., Wienholtz, F., Wolf, R. N., & Zuber, K. (2017). Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away. Physical Review Letters, 119(19), Article 192502. https://doi.org/10.1103/PhysRevLett.119.192502

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title = "Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away",

abstract = "The masses of the neutron-rich copper isotopes Cu75-79 are determined using the precision mass spectrometer ISOLTRAP at the CERN-ISOLDE facility. The trend from the new data differs significantly from that of previous results, offering a first accurate view of the mass surface adjacent to the Z=28, N=50 nuclide Ni78 and supporting a doubly magic character. The new masses compare very well with large-scale shell-model calculations that predict shape coexistence in a doubly magic Ni78 and a new island of inversion for Z<28. A coherent picture of this important exotic region begins to emerge where excitations across Z=28 and N=50 form a delicate equilibrium with a spherical mean field.",

author = "A. Welker and Althubiti, {N. A.S.} and D. Atanasov and K. Blaum and Cocolios, {T. E.} and F. Herfurth and S. Kreim and D. Lunney and V. Manea and M. Mougeot and D. Neidherr and F. Nowacki and A. Poves and M. Rosenbusch and L. Schweikhard and F. Wienholtz and Wolf, {R. N.} and K. Zuber",

year = "2017",

month = nov,

day = "6",

doi = "10.1103/PhysRevLett.119.192502",

language = "English",

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issn = "0031-9007",

publisher = "American Physical Society",

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Welker, A, Althubiti, NAS, Atanasov, D, Blaum, K, Cocolios, TE, Herfurth, F, Kreim, S, Lunney, D, Manea, V, Mougeot, M, Neidherr, D, Nowacki, F, Poves, A, Rosenbusch, M, Schweikhard, L, Wienholtz, F, Wolf, RN & Zuber, K 2017, 'Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away', Physical Review Letters, vol. 119, no. 19, 192502. https://doi.org/10.1103/PhysRevLett.119.192502

TY - JOUR

T1 - Binding Energy of Cu 79

T2 - Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away

AU - Welker, A.

AU - Althubiti, N. A.S.

AU - Atanasov, D.

AU - Blaum, K.

AU - Cocolios, T. E.

AU - Herfurth, F.

AU - Kreim, S.

AU - Lunney, D.

AU - Manea, V.

AU - Mougeot, M.

AU - Neidherr, D.

AU - Nowacki, F.

AU - Poves, A.

AU - Rosenbusch, M.

AU - Schweikhard, L.

AU - Wienholtz, F.

AU - Wolf, R. N.

AU - Zuber, K.

PY - 2017/11/6

Y1 - 2017/11/6

N2 - The masses of the neutron-rich copper isotopes Cu75-79 are determined using the precision mass spectrometer ISOLTRAP at the CERN-ISOLDE facility. The trend from the new data differs significantly from that of previous results, offering a first accurate view of the mass surface adjacent to the Z=28, N=50 nuclide Ni78 and supporting a doubly magic character. The new masses compare very well with large-scale shell-model calculations that predict shape coexistence in a doubly magic Ni78 and a new island of inversion for Z<28. A coherent picture of this important exotic region begins to emerge where excitations across Z=28 and N=50 form a delicate equilibrium with a spherical mean field.

AB - The masses of the neutron-rich copper isotopes Cu75-79 are determined using the precision mass spectrometer ISOLTRAP at the CERN-ISOLDE facility. The trend from the new data differs significantly from that of previous results, offering a first accurate view of the mass surface adjacent to the Z=28, N=50 nuclide Ni78 and supporting a doubly magic character. The new masses compare very well with large-scale shell-model calculations that predict shape coexistence in a doubly magic Ni78 and a new island of inversion for Z<28. A coherent picture of this important exotic region begins to emerge where excitations across Z=28 and N=50 form a delicate equilibrium with a spherical mean field.

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U2 - 10.1103/PhysRevLett.119.192502

DO - 10.1103/PhysRevLett.119.192502

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SN - 0031-9007

VL - 119

JO - Physical Review Letters

JF - Physical Review Letters

IS - 19

M1 - 192502

ER -

Binding Energy of Cu 79: Probing the Structure of the Doubly Magic Ni 78 from only One Proton Away

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