Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

C. Wraith; X. F. Yang; L. Xie; C. Babcock; J. Bieroń; J. Billowes; M. L. Bissell; K. Blaum; B. Cheal; L. Filippin; R. F. Garcia Ruiz; W. Gins; L. K. Grob; G. Gaigalas; M. Godefroid; C. Gorges; H. Heylen; M. Honma; P. Jönsson; S. Kaufmann; M. Kowalska; J. Krämer; S. Malbrunot-Ettenauer; R. Neugart; G. Neyens; W. Nörtershäuser; F. Nowacki; T. Otsuka; J. Papuga; R. Sánchez; Y. Tsunoda; D. T. Yordanov

doi:10.1016/j.physletb.2017.05.085

Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

C. Wraith, X. F. Yang^*, L. Xie, C. Babcock, J. Bieroń, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, L. Filippin, R. F. Garcia Ruiz, W. Gins, L. K. Grob, G. Gaigalas, M. Godefroid, C. Gorges, H. Heylen, M. Honma, P. Jönsson, S. KaufmannM. Kowalska, J. Krämer, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, F. Nowacki, T. Otsuka, J. Papuga, R. Sánchez, Y. Tsunoda, D. T. Yordanov

^*Corresponding author for this work

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

Abstract

Collinear laser spectroscopy was performed on Zn (Z=30) isotopes at ISOLDE, CERN. The study of hyperfine spectra of nuclei across the Zn isotopic chain, N=33–49, allowed the measurement of nuclear spins for the ground and isomeric states in odd-A neutron-rich nuclei up to N=50. Exactly one long-lived (>10 ms) isomeric state has been established in each ^69–79Zn isotope. The nuclear magnetic dipole moments and spectroscopic quadrupole moments are well reproduced by large-scale shell–model calculations in the f₅pg₉ and fpg₉d₅ model spaces, thus establishing the dominant term in their wave function. The magnetic moment of the intruder I^π=1/2⁺ isomer in ⁷⁹Zn is reproduced only if the νs_1/2 orbital is added to the valence space, as realized in the recently developed PFSDG-U interaction. The spin and moments of the low-lying isomeric state in ⁷³Zn suggest a strong onset of deformation at N=43, while the progression towards ⁷⁹Zn points to the stability of the Z=28 and N=50 shell gaps, supporting the magicity of ⁷⁸Ni.

Original language	English
Pages (from-to)	385-391
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	771
Early online date	1 Jun 2017
DOIs	https://doi.org/10.1016/j.physletb.2017.05.085
Publication status	Published - 10 Aug 2017

Keywords

Laser
Magnetic dipole moment
Quadrupole moment
Shell closure
Zinc

Research Beacons, Institutes and Platforms

Dalton Nuclear Institute

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10.1016/j.physletb.2017.05.085Licence: CC BY

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Wraith, C., Yang, X. F., Xie, L., Babcock, C., Bieroń, J., Billowes, J., Bissell, M. L., Blaum, K., Cheal, B., Filippin, L., Garcia Ruiz, R. F., Gins, W., Grob, L. K., Gaigalas, G., Godefroid, M., Gorges, C., Heylen, H., Honma, M., Jönsson, P., ... Yordanov, D. T. (2017). Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 771, 385-391. https://doi.org/10.1016/j.physletb.2017.05.085

@article{2ddadbeb7f524a30bcc3eff765a48216,

title = "Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers",

abstract = "Collinear laser spectroscopy was performed on Zn (Z=30) isotopes at ISOLDE, CERN. The study of hyperfine spectra of nuclei across the Zn isotopic chain, N=33–49, allowed the measurement of nuclear spins for the ground and isomeric states in odd-A neutron-rich nuclei up to N=50. Exactly one long-lived (>10 ms) isomeric state has been established in each 69–79Zn isotope. The nuclear magnetic dipole moments and spectroscopic quadrupole moments are well reproduced by large-scale shell–model calculations in the f5pg9 and fpg9d5 model spaces, thus establishing the dominant term in their wave function. The magnetic moment of the intruder Iπ=1/2+ isomer in 79Zn is reproduced only if the νs1/2 orbital is added to the valence space, as realized in the recently developed PFSDG-U interaction. The spin and moments of the low-lying isomeric state in 73Zn suggest a strong onset of deformation at N=43, while the progression towards 79Zn points to the stability of the Z=28 and N=50 shell gaps, supporting the magicity of 78Ni.",

keywords = "Laser, Magnetic dipole moment, Quadrupole moment, Shell closure, Zinc",

author = "C. Wraith and Yang, {X. F.} and L. Xie and C. Babcock and J. Biero{\'n} and J. Billowes and Bissell, {M. L.} and K. Blaum and B. Cheal and L. Filippin and {Garcia Ruiz}, {R. F.} and W. Gins and Grob, {L. K.} and G. Gaigalas and M. Godefroid and C. Gorges and H. Heylen and M. Honma and P. J{\"o}nsson and S. Kaufmann and M. Kowalska and J. Kr{\"a}mer and S. Malbrunot-Ettenauer and R. Neugart and G. Neyens and W. N{\"o}rtersh{\"a}user and F. Nowacki and T. Otsuka and J. Papuga and R. S{\'a}nchez and Y. Tsunoda and Yordanov, {D. T.}",

year = "2017",

month = aug,

day = "10",

doi = "10.1016/j.physletb.2017.05.085",

language = "English",

volume = "771",

pages = "385--391",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier BV",

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Wraith, C, Yang, XF, Xie, L, Babcock, C, Bieroń, J, Billowes, J, Bissell, ML, Blaum, K, Cheal, B, Filippin, L, Garcia Ruiz, RF, Gins, W, Grob, LK, Gaigalas, G, Godefroid, M, Gorges, C, Heylen, H, Honma, M, Jönsson, P, Kaufmann, S, Kowalska, M, Krämer, J, Malbrunot-Ettenauer, S, Neugart, R, Neyens, G, Nörtershäuser, W, Nowacki, F, Otsuka, T, Papuga, J, Sánchez, R, Tsunoda, Y & Yordanov, DT 2017, 'Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 771, pp. 385-391. https://doi.org/10.1016/j.physletb.2017.05.085

TY - JOUR

T1 - Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

AU - Wraith, C.

AU - Yang, X. F.

AU - Xie, L.

AU - Babcock, C.

AU - Bieroń, J.

AU - Billowes, J.

AU - Bissell, M. L.

AU - Blaum, K.

AU - Cheal, B.

AU - Filippin, L.

AU - Garcia Ruiz, R. F.

AU - Gins, W.

AU - Grob, L. K.

AU - Gaigalas, G.

AU - Godefroid, M.

AU - Gorges, C.

AU - Heylen, H.

AU - Honma, M.

AU - Jönsson, P.

AU - Kaufmann, S.

AU - Kowalska, M.

AU - Krämer, J.

AU - Malbrunot-Ettenauer, S.

AU - Neugart, R.

AU - Neyens, G.

AU - Nörtershäuser, W.

AU - Nowacki, F.

AU - Otsuka, T.

AU - Papuga, J.

AU - Sánchez, R.

AU - Tsunoda, Y.

AU - Yordanov, D. T.

PY - 2017/8/10

Y1 - 2017/8/10

N2 - Collinear laser spectroscopy was performed on Zn (Z=30) isotopes at ISOLDE, CERN. The study of hyperfine spectra of nuclei across the Zn isotopic chain, N=33–49, allowed the measurement of nuclear spins for the ground and isomeric states in odd-A neutron-rich nuclei up to N=50. Exactly one long-lived (>10 ms) isomeric state has been established in each 69–79Zn isotope. The nuclear magnetic dipole moments and spectroscopic quadrupole moments are well reproduced by large-scale shell–model calculations in the f5pg9 and fpg9d5 model spaces, thus establishing the dominant term in their wave function. The magnetic moment of the intruder Iπ=1/2+ isomer in 79Zn is reproduced only if the νs1/2 orbital is added to the valence space, as realized in the recently developed PFSDG-U interaction. The spin and moments of the low-lying isomeric state in 73Zn suggest a strong onset of deformation at N=43, while the progression towards 79Zn points to the stability of the Z=28 and N=50 shell gaps, supporting the magicity of 78Ni.

AB - Collinear laser spectroscopy was performed on Zn (Z=30) isotopes at ISOLDE, CERN. The study of hyperfine spectra of nuclei across the Zn isotopic chain, N=33–49, allowed the measurement of nuclear spins for the ground and isomeric states in odd-A neutron-rich nuclei up to N=50. Exactly one long-lived (>10 ms) isomeric state has been established in each 69–79Zn isotope. The nuclear magnetic dipole moments and spectroscopic quadrupole moments are well reproduced by large-scale shell–model calculations in the f5pg9 and fpg9d5 model spaces, thus establishing the dominant term in their wave function. The magnetic moment of the intruder Iπ=1/2+ isomer in 79Zn is reproduced only if the νs1/2 orbital is added to the valence space, as realized in the recently developed PFSDG-U interaction. The spin and moments of the low-lying isomeric state in 73Zn suggest a strong onset of deformation at N=43, while the progression towards 79Zn points to the stability of the Z=28 and N=50 shell gaps, supporting the magicity of 78Ni.

KW - Laser

KW - Magnetic dipole moment

KW - Quadrupole moment

KW - Shell closure

KW - Zinc

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U2 - 10.1016/j.physletb.2017.05.085

DO - 10.1016/j.physletb.2017.05.085

M3 - Article

AN - SCOPUS:85020216918

SN - 0370-2693

VL - 771

SP - 385

EP - 391

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Evolution of nuclear structure in neutron-rich odd-Zn isotopes and isomers

Abstract

Keywords

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