Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability

S. Kaufmann; J. Simonis; S. Bacca; J. Billowes; M. L. Bissell; K. Blaum; B. Cheal; R. F.Garcia Ruiz; W. Gins; C. Gorges; G. Hagen; H. Heylen; A. Kanellakopoulos; S. Malbrunot-Ettenauer; M. Miorelli; R. Neugart; G. Neyens; W. Nörtershaüser; R. Sánchez; S. Sailer; A. Schwenk; T. Ratajczyk; L. V. Rodríguez; L. Wehner; C. Wraith; L. Xie; Z. Y. Xu; X. F. Yang; D. T. Yordanov

doi:10.1103/PhysRevLett.124.132502

Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability

S. Kaufmann, J. Simonis, S. Bacca, J. Billowes, M. L. Bissell, K. Blaum, B. Cheal, R. F.Garcia Ruiz, W. Gins, C. Gorges, G. Hagen, H. Heylen, A. Kanellakopoulos, S. Malbrunot-Ettenauer, M. Miorelli, R. Neugart, G. Neyens, W. Nörtershaüser, R. Sánchez, S. SailerA. Schwenk, T. Ratajczyk, L. V. Rodríguez, L. Wehner, C. Wraith, L. Xie, Z. Y. Xu, X. F. Yang, D. T. Yordanov

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Abstract

We present the first laser spectroscopic measurement of the neutron-rich nucleus Ni68 at the N=40 subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability αD has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- A nd three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus Ca48. Three-particle-three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of Ni68.

Original language	English
Article number	132502
Journal	Physical Review Letters
Volume	124
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.124.132502
State	Published - Apr 3 2020

Funding

We acknowledge the support of the ISOLDE Collaboration and technical teams and funding from the European Union’s Horizon 2020 programme under Grant Agreement No. 654002. This work was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)—Projektnummer 279384907—SFB 1245, the Collaborative Research Center [The Low-Energy Frontier of the Standard Model (SFB 1044)], the Cluster of Excellence “Precision Physics, Fundamental Interactions, and Structure of Matter” ( EXC 2118/1) funded by DFG within the German Excellence Strategy—Projektnummer 39083149—, the BMBF under Contracts No. 05P18RDCIA, No. 05P18RDFN1, and No. 05P19RDFN1, the FWO (Belgium), GOA 15/010 from KU Leuven, the Office of Nuclear Physics, U.S. Department of Energy, under Grant No. DESC0018223 (NUCLEI SciDAC-4 collaboration), and by the Field Work Proposal ERKBP72 at Oak Ridge National Laboratory (ORNL). Computer time was provided by the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. The calculations presented in this work were also performed on “Mogon II” at Johannes Gutenberg-Universität in Mainz. This work was also supported by consolidated grants from STFC (UK)—ST/L005670/1, ST/L005794/1, ST/P004423/1, and ST/P004598/1.

Funders	Funder number
European Union’s Horizon 2020 programme
U.S. Department of Energy	DESC0018223
U.S. Department of Energy
Nuclear Physics
Oak Ridge National Laboratory
Horizon 2020 Framework Programme	654002
Horizon 2020 Framework Programme
Science and Technology Facilities Council	ST/P004423/1, ST/P004598/1, ST/L005794/1, ST/L005670/1
Science and Technology Facilities Council
Deutsche Forschungsgemeinschaft	39083149, EXC 2118/1, 279384907—SFB 1245, SFB 1044
Deutsche Forschungsgemeinschaft
Bundesministerium für Bildung und Forschung	05P19RDFN1, 05P18RDCIA, 05P18RDFN1
Bundesministerium für Bildung und Forschung
Fonds Wetenschappelijk Onderzoek	GOA 15/010
Fonds Wetenschappelijk Onderzoek
KU Leuven

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10.1103/PhysRevLett.124.132502

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Kaufmann, S., Simonis, J., Bacca, S., Billowes, J., Bissell, M. L., Blaum, K., Cheal, B., Ruiz, R. F. G., Gins, W., Gorges, C., Hagen, G., Heylen, H., Kanellakopoulos, A., Malbrunot-Ettenauer, S., Miorelli, M., Neugart, R., Neyens, G., Nörtershaüser, W., Sánchez, R., ... Yordanov, D. T. (2020). Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability. Physical Review Letters, 124(13), Article 132502. https://doi.org/10.1103/PhysRevLett.124.132502

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title = "Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability",

abstract = "We present the first laser spectroscopic measurement of the neutron-rich nucleus Ni68 at the N=40 subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability αD has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- A nd three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus Ca48. Three-particle-three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of Ni68.",

author = "S. Kaufmann and J. Simonis and S. Bacca and J. Billowes and Bissell, {M. L.} and K. Blaum and B. Cheal and Ruiz, {R. F.Garcia} and W. Gins and C. Gorges and G. Hagen and H. Heylen and A. Kanellakopoulos and S. Malbrunot-Ettenauer and M. Miorelli and R. Neugart and G. Neyens and W. N{\"o}rtersha{\"u}ser and R. S{\'a}nchez and S. Sailer and A. Schwenk and T. Ratajczyk and Rodr{\'i}guez, {L. V.} and L. Wehner and C. Wraith and L. Xie and Xu, {Z. Y.} and Yang, {X. F.} and Yordanov, {D. T.}",

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society.",

year = "2020",

month = apr,

day = "3",

doi = "10.1103/PhysRevLett.124.132502",

language = "English",

volume = "124",

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Kaufmann, S, Simonis, J, Bacca, S, Billowes, J, Bissell, ML, Blaum, K, Cheal, B, Ruiz, RFG, Gins, W, Gorges, C, Hagen, G, Heylen, H, Kanellakopoulos, A, Malbrunot-Ettenauer, S, Miorelli, M, Neugart, R, Neyens, G, Nörtershaüser, W, Sánchez, R, Sailer, S, Schwenk, A, Ratajczyk, T, Rodríguez, LV, Wehner, L, Wraith, C, Xie, L, Xu, ZY, Yang, XF & Yordanov, DT 2020, 'Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability', Physical Review Letters, vol. 124, no. 13, 132502. https://doi.org/10.1103/PhysRevLett.124.132502

TY - JOUR

T1 - Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability

AU - Kaufmann, S.

AU - Simonis, J.

AU - Bacca, S.

AU - Billowes, J.

AU - Bissell, M. L.

AU - Blaum, K.

AU - Cheal, B.

AU - Ruiz, R. F.Garcia

AU - Gins, W.

AU - Gorges, C.

AU - Hagen, G.

AU - Heylen, H.

AU - Kanellakopoulos, A.

AU - Malbrunot-Ettenauer, S.

AU - Miorelli, M.

AU - Neugart, R.

AU - Neyens, G.

AU - Nörtershaüser, W.

AU - Sánchez, R.

AU - Sailer, S.

AU - Schwenk, A.

AU - Ratajczyk, T.

AU - Rodríguez, L. V.

AU - Wehner, L.

AU - Wraith, C.

AU - Xie, L.

AU - Xu, Z. Y.

AU - Yang, X. F.

AU - Yordanov, D. T.

PY - 2020/4/3

Y1 - 2020/4/3

N2 - We present the first laser spectroscopic measurement of the neutron-rich nucleus Ni68 at the N=40 subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability αD has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- A nd three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus Ca48. Three-particle-three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of Ni68.

AB - We present the first laser spectroscopic measurement of the neutron-rich nucleus Ni68 at the N=40 subshell closure and extract its nuclear charge radius. Since this is the only short-lived isotope for which the dipole polarizability αD has been measured, the combination of these observables provides a benchmark for nuclear structure theory. We compare them to novel coupled-cluster calculations based on different chiral two- A nd three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus Ca48. Three-particle-three-hole correlations in coupled-cluster theory substantially improve the description of the experimental data, which allows to constrain the neutron radius and neutron skin of Ni68.

UR - http://www.scopus.com/inward/record.url?scp=85083755653&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.124.132502

DO - 10.1103/PhysRevLett.124.132502

M3 - Article

C2 - 32302185

AN - SCOPUS:85083755653

SN - 0031-9007

VL - 124

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132502

ER -

Charge Radius of the Short-Lived Ni 68 and Correlation with the Dipole Polarizability

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