Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability

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

doi:10.1103/PhysRevLett.124.132502

Title: Charge Radius of the Short-Lived ${}^{68}{Ni}$ and Correlation with the Dipole Polarizability

Abstract

We present the first laser spectroscopic measurement of the neutron-rich nucleus ⁶⁸Ni 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 $$α$$_D 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- and three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus ⁴⁸Ca. 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 ⁶⁸Ni.

Authors:

Kaufmann, S.; Simonis, J.; Bacca, S.; Billowes, J.; Bissell, M. L.;

; Cheal, B.; Ruiz, R. F. Garcia; Gins, W.; Gorges, C.; Hagen, G.; Heylen, H.;

; Malbrunot-Ettenauer, S.; Miorelli, M.; Neugart, R.;

;

; Sailer, S. more »

Publication Date:: 2020-04-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP); ISOLDE Collaboration; European Union’s Horizon 2020; German Research Foundation (DFG); German Federal Ministry of Education and Research (BMBF); Innovative and Novel Computational Impact on Theory and Experiment (INCITE); Science and Technology Facilities Council (STFC)

OSTI Identifier:: 1607964

Alternate Identifier(s):: OSTI ID: 1633144

Grant/Contract Number:: AC05-00OR22725; SC0018223; 654002; 05P18RDCIA; 05P18RDFN1; 05P19RDFN1; ST/ L005670/1; ST/L005794/1; ST/P004423/1; ST/ P004598/1

Resource Type:: Published Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters Journal Volume: 124 Journal Issue: 13; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats


                    Kaufmann, S., Simonis, J., Bacca, S., Billowes, J., Bissell, M. L., Blaum, K., Cheal, B., Ruiz, R. F. Garcia, Gins, W., Gorges, C., Hagen, G., Heylen, H., Kanellakopoulos, A., Malbrunot-Ettenauer, S., Miorelli, M., Neugart, R., Neyens, G., Nörtershäuser, W., Sánchez, R., Sailer, S., Schwenk, A., Ratajczyk, T., Rodríguez, L. V., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., and Yordanov, D. T. Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability.  United States: N. p., 2020. 
Web.  doi: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. Garcia, Gins, W., Gorges, C., Hagen, G., Heylen, H., Kanellakopoulos, A., Malbrunot-Ettenauer, S., Miorelli, M., Neugart, R., Neyens, G., Nörtershäuser, W., Sánchez, R., Sailer, S., Schwenk, A., Ratajczyk, T., Rodríguez, L. V., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., & Yordanov, D. T. Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability.  United States.  https://doi.org/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. Garcia, Gins, W., Gorges, C., Hagen, G., Heylen, H., Kanellakopoulos, A., Malbrunot-Ettenauer, S., Miorelli, M., Neugart, R., Neyens, G., Nörtershäuser, W., Sánchez, R., Sailer, S., Schwenk, A., Ratajczyk, T., Rodríguez, L. V., Wehner, L., Wraith, C., Xie, L., Xu, Z. Y., Yang, X. F., and Yordanov, D. T. Wed .  
"Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability".  United States.  https://doi.org/10.1103/PhysRevLett.124.132502.

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@article{osti_1607964,

  title        = {Charge Radius of the Short-Lived Ni68 and Correlation with the Dipole Polarizability},

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

  abstractNote = {We present the first laser spectroscopic measurement of the neutron-rich nucleus 68Ni 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 $α$D 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- and three-nucleon interactions, for which a strong correlation between the charge radius and dipole polarizability is observed, similar to the stable nucleus 48Ca. 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 68Ni.},

  doi          = {10.1103/PhysRevLett.124.132502},

  journal      = {Physical Review Letters},

  number       = 13,

  volume       = 124,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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Figures / Tables:

FIG. 1: Resonance spectra of the stable isotopes ^{58,60,61,62,64}Ni and the radioactive ⁶⁸Ni with their center frequency indicated with a vertical line. The count rate is normalized for each isotope, and the frequency is given relative to the center frequency of the reference isotope ₆₀Ni.

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

Abstract

Citation Formats

Figures / Tables:

From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of Cd 100 − 130 journal, September 2018

Constraints on the symmetry energy and neutron skins from experiments and theory journal, July 2012

Measurement of the Dipole Polarizability of the Unstable Neutron-Rich Nucleus Ni 68 journal, December 2013

Structure of the Lightest Tin Isotopes journal, April 2018

Chiral effective field theory and nuclear forces journal, June 2011

Complete Electric Dipole Response and the Neutron Skin in Pb 208 journal, August 2011

Resonance ionization laser ion sources for on-line isotope separators (invited) journal, February 2014

Exploring s d -shell nuclei from two- and three-nucleon interactions with realistic saturation properties journal, January 2016

Neutron and weak-charge distributions of the 48Ca nucleus journal, November 2015

GW170817: Measurements of Neutron Star Radii and Equation of State journal, October 2018

Colloquium : Three-body forces: From cold atoms to nuclei journal, January 2013

Modern theory of nuclear forces journal, December 2009

Improved nuclear matter calculations from chiral low-momentum interactions journal, March 2011

Determination of the Equation of State of Dense Matter journal, October 2002

Tests of atomic charge-exchange cells for collinear laser spectroscopy journal, June 2012

Giant and pigmy dipole resonances in He 4 , O 16 , 22 , and Ca 40 from chiral nucleon-nucleon interactions journal, December 2014

Off-line commissioning of the ISOLDE cooler journal, October 2008

Spins, moments and charge radii of barium isotopes in the range 122–146Ba determined by collinear fast-beam laser spectroscopy journal, July 1983

Electric Dipole Polarizability of Ca 48 and Implications for the Neutron Skin journal, June 2017

Nuclear electromagnetic dipole response with the self-consistent Green's function formalism journal, May 2019

Saturation with chiral interactions and consequences for finite nuclei journal, July 2017

Electric dipole polarizability from first principles calculations journal, September 2016

Computing the dipole polarizability of Ca 48 with increased precision journal, July 2018

Neutron charge radius determined from the energy dependence of the neutron transmission of liquid 208 Pb and 209 Bi journal, October 1997

Population distribution subsequent to charge exchange of 29.85 keV Ni+ on sodium vapor journal, November 2015

Accurate nuclear radii and binding energies from a chiral interaction journal, May 2015

Dipole polarizability of Sn 120 and nuclear energy density functionals journal, September 2015

First principles electromagnetic responses in medium-mass nuclei: Recent progress from coupled-cluster theory journal, December 2019

First Principles Description of the Giant Dipole Resonance in O 16 journal, September 2013

Neutron skin thickness from the measured electric dipole polarizability in Ni 68 , Sn 120 , and Pb 208 journal, December 2015

Neutron Skin of Pb 208 , Nuclear Symmetry Energy, and the Parity Radius Experiment journal, June 2011

Nuclear sizes and the isotope shift journal, December 1997

Title: Charge Radius of the Short-Lived ${}^{68}{Ni}$ and Correlation with the Dipole Polarizability

From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of ${}^{100 − 130}{Cd}$
journal, September 2018

Constraints on the symmetry energy and neutron skins from experiments and theory
journal, July 2012

Measurement of the Dipole Polarizability of the Unstable Neutron-Rich Nucleus ${}^{68}{Ni}$
journal, December 2013

Structure of the Lightest Tin Isotopes
journal, April 2018

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Complete Electric Dipole Response and the Neutron Skin in ${}^{208}{Pb}$
journal, August 2011

Resonance ionization laser ion sources for on-line isotope separators (invited)
journal, February 2014

Exploring $s d$ -shell nuclei from two- and three-nucleon interactions with realistic saturation properties
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Neutron and weak-charge distributions of the 48Ca nucleus
journal, November 2015

GW170817: Measurements of Neutron Star Radii and Equation of State
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Colloquium : Three-body forces: From cold atoms to nuclei
journal, January 2013

Modern theory of nuclear forces
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Improved nuclear matter calculations from chiral low-momentum interactions
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Determination of the Equation of State of Dense Matter
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Tests of atomic charge-exchange cells for collinear laser spectroscopy
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Giant and pigmy dipole resonances in ${}^{4}{He}$ , ${}^{16, 22}O$ , and ${}^{40}{Ca}$ from chiral nucleon-nucleon interactions
journal, December 2014

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