Surprising Charge-Radius Kink in the Sc Isotopes at N = 20

König, Kristian; Fritzsche, Stephan; Hagen, Gaute; Holt, Jason D.; Klose, Andrew; Lantis, Jeremy; Liu, Yuan; Minamisono, Kei; Miyagi, Takayuki; Nazarewicz, Witold; Papenbrock, Thomas; Pineda, Skyy V.; Powel, Robert; Reinhard, Paul-Gerhard

doi:10.1103/physrevlett.131.102501

Title: Surprising Charge-Radius Kink in the Sc Isotopes at N = 20

Journal Article · 04 September 2023 · Physical Review Letters

DOI: https://doi.org/10.1103/physrevlett.131.102501 · OSTI ID:2000280

^[1];

^[2];

^[3];

^[4];

^[5];

^[6];

^[7];

^[6];

^[8];

^[6];

^[9]

Michigan State Univ., East Lansing, MI (United States); Technische Univ. Darmstadt (Germany)
Helmholtz Institute, Jena (Germany); Friedrich Schiller Univ., Jena (Germany)
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
TRIUMF, Vancouver, BC (Canada); McGill Univ., Montreal, QC (Canada)
Augustana College, Sioux Falls, SD (United States)
Michigan State Univ., East Lansing, MI (United States)
Technische Univ. Darmstadt (Germany); GSI-Helmholtzzentrum fur Schwerionenforschung, Darmstadt (Germany); Max Planck Inst. fuer Kernphysik, Heidelberg (Germany)
Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Freidrich Alexander Univ. Erlangen-Nürnberg (FAU), Erlangen (Germany)

For this work, charge radii of neutron deficient ⁴⁰Sc and ⁴¹Sc nuclei were determined using collinear laser spectroscopy. With the new data, the chain of Sc charge radii extends below the neutron magic number N=20 and shows a pronounced kink, generally taken as a signature of a shell closure, but one notably absent in the neighboring Ca, K, and Ar isotopic chains. Theoretical models that explain the trend at N=20 for the Ca isotopes cannot reproduce this puzzling behavior.

View Accepted Manuscript (DOE)

Cite

Export

Save

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-00OR22725; FG02-96ER40963; SC0013365; SC0018223; SC0023175

OSTI ID:: 2000280

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 10 Vol. 131; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (59)

Relativistic Quantum Theory of Atoms and Molecules Grant, I. P. Springer Series on Atomic, Optical, and Plasma Physics https://doi.org/10.1007/978-0-387-35069-1	book	January 2007
On the performance of wavelength meters: Part 1—consequences for medium-to-high-resolution laser spectroscopy Verlinde, M.; Dockx, K.; Geldhof, S. Applied Physics B, Vol. 126, Issue 5 https://doi.org/10.1007/s00340-020-07425-4	journal	April 2020
On the performance of wavelength meters: Part 2—frequency-comb based characterization for more accurate absolute wavelength determinations König, Kristian; Imgram, Phillip; Krämer, Jörg Applied Physics B, Vol. 126, Issue 5 https://doi.org/10.1007/s00340-020-07433-4	journal	April 2020
Many-fermion theory in expS- (or coupled cluster) form Kümmel, H.; Lührmann, K. H.; Zabolitzky, J. G. Physics Reports, Vol. 36, Issue 1 https://doi.org/10.1016/0370-1573(78)90081-9	journal	February 1978
Isotope shifts and hyperfine structure of 38–47K by laser spectroscopy Touchard, F.; Guimbal, P.; Büttgenbach, S. Physics Letters B, Vol. 108, Issue 3 https://doi.org/10.1016/0370-2693(82)91167-4	journal	January 1982
A measurement of the mass of 39Sc Woods, C. L.; Catford, W. N.; Fifield, L. K. Nuclear Physics A, Vol. 484, Issue 1 https://doi.org/10.1016/0375-9474(88)90146-7	journal	July 1988
Moments and mean square charge radii of short-lived argon isotopes Klein, A.; Brown, B. A.; Georg, U. Nuclear Physics A, Vol. 607, Issue 1 https://doi.org/10.1016/0375-9474(96)00192-3	journal	September 1996
Commissioning the A1900 projectile fragment separator Morrissey, D. J.; Sherrill, B. M.; Steiner, M. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 204 https://doi.org/10.1016/S0168-583X(02)01895-5	journal	May 2003
High spin states in 45Sc and coexistence of collective and non-collective structures in the odd-A nuclei Bednarczyk, P.; Styczeń, J.; Broda, R. Physics Letters B, Vol. 393, Issue 3-4 https://doi.org/10.1016/S0370-2693(96)01635-8	journal	February 1997
Table of experimental nuclear ground state charge radii: An update Angeli, I.; Marinova, K. P. Atomic Data and Nuclear Data Tables, Vol. 99, Issue 1 https://doi.org/10.1016/j.adt.2011.12.006	journal	January 2013
The Ratip program for relativistic calculations of atomic transition, ionization and recombination properties Fritzsche, S. Computer Physics Communications, Vol. 183, Issue 7 https://doi.org/10.1016/j.cpc.2012.02.016	journal	July 2012
ris3: A program for relativistic isotope shift calculations Nazé, C.; Gaidamauskas, E.; Gaigalas, G. Computer Physics Communications, Vol. 184, Issue 9 https://doi.org/10.1016/j.cpc.2013.02.015	journal	September 2013
New version: Grasp2K relativistic atomic structure package Jönsson, P.; Gaigalas, G.; Bieroń, J. Computer Physics Communications, Vol. 184, Issue 9 https://doi.org/10.1016/j.cpc.2013.02.016	journal	September 2013
A fresh computational approach to atomic structures, processes and cascades Fritzsche, Stephan Computer Physics Communications, Vol. 240 https://doi.org/10.1016/j.cpc.2019.01.012	journal	July 2019
Thick-restart block Lanczos method for large-scale shell-model calculations Shimizu, Noritaka; Mizusaki, Takahiro; Utsuno, Yutaka Computer Physics Communications, Vol. 244 https://doi.org/10.1016/j.cpc.2019.06.011	journal	November 2019
Commissioning of the collinear laser spectroscopy system in the BECOLA facility at NSCL Minamisono, K.; Mantica, P. F.; Klose, A. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 709 https://doi.org/10.1016/j.nima.2013.01.038	journal	May 2013
Extraction of thermalized projectile fragments from a large volume gas cell Cooper, K.; Sumithrarachchi, C. S.; Morrissey, D. J. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 763 https://doi.org/10.1016/j.nima.2014.06.075	journal	November 2014
RFQ beam cooler and buncher for collinear laser spectroscopy of rare isotopes Barquest, B. R.; Bollen, G.; Mantica, P. F. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 866 https://doi.org/10.1016/j.nima.2017.05.036	journal	September 2017
Proton-neutron pairing correlations in the self-conjugate nucleus 42Sc Koszorús, Á.; Vormawah, L. J.; Beerwerth, R. Physics Letters B, Vol. 819 https://doi.org/10.1016/j.physletb.2021.136439	journal	August 2021
Nuclear magic numbers: New features far from stability Sorlin, O.; Porquet, M. -G. Progress in Particle and Nuclear Physics, Vol. 61, Issue 2 https://doi.org/10.1016/j.ppnp.2008.05.001	journal	October 2008
Laser spectroscopy for nuclear structure physics Campbell, P.; Moore, I. D.; Pearson, M. R. Progress in Particle and Nuclear Physics, Vol. 86 https://doi.org/10.1016/j.ppnp.2015.09.003	journal	January 2016
Population distribution subsequent to charge exchange of 29.85 keV Ni+ on sodium vapor Ryder, C. A.; Minamisono, K.; Asberry, H. B. Spectrochimica Acta Part B: Atomic Spectroscopy, Vol. 113 https://doi.org/10.1016/j.sab.2015.08.004	journal	November 2015
Neutron and weak-charge distributions of the 48Ca nucleus Hagen, G.; Ekström, A.; Forssén, C. Nature Physics, Vol. 12, Issue 2 https://doi.org/10.1038/nphys3529	journal	November 2015
Unexpectedly large charge radii of neutron-rich calcium isotopes Garcia Ruiz, R. F.; Bissell, M. L.; Blaum, K. Nature Physics, Vol. 12, Issue 6 https://doi.org/10.1038/nphys3645	journal	February 2016
Proton superfluidity and charge radii in proton-rich calcium isotopes Miller, A. J.; Minamisono, K.; Klose, A. Nature Physics, Vol. 15, Issue 5 https://doi.org/10.1038/s41567-019-0416-9	journal	February 2019
Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32 Koszorús, Á.; Yang, X. F.; Jiang, W. G. Nature Physics, Vol. 17, Issue 4 https://doi.org/10.1038/s41567-020-01136-5	journal	January 2021
A field programmable gate array-based time-resolved scaler for collinear laser spectroscopy with bunched radioactive potassium beams Rossi, D. M.; Minamisono, K.; Barquest, B. R. Review of Scientific Instruments, Vol. 85, Issue 9 https://doi.org/10.1063/1.4895461	journal	September 2014
Isospin effects in N ≈ Z nuclei in extended density functional theory Satuła, Wojciech; Nazarewicz, Witold Physica Scripta, Vol. 91, Issue 2 https://doi.org/10.1088/0031-8949/91/2/023013	journal	January 2016
Coupled-cluster computations of atomic nuclei Hagen, G.; Papenbrock, T.; Hjorth-Jensen, M. Reports on Progress in Physics, Vol. 77, Issue 9 https://doi.org/10.1088/0034-4885/77/9/096302	journal	September 2014
The mean square nuclear charge radius of Vermeeren, Ludo; Lievens, Peter; Silverans, Roger E. Journal of Physics G: Nuclear and Particle Physics, Vol. 22, Issue 10 https://doi.org/10.1088/0954-3899/22/10/014	journal	October 1996
Nuclear charge radii of neutron deficient titanium isotopes ⁴⁴ Ti and ⁴⁵ Ti Gangrsky, Yu P.; Marinova, K. P.; Zemlyanoi, S. G. Journal of Physics G: Nuclear and Particle Physics, Vol. 30, Issue 9 https://doi.org/10.1088/0954-3899/30/9/009	journal	August 2004
Nuclear charge radii and electromagnetic moments of radioactive scandium isotopes and isomers Avgoulea, M.; Gangrsky, Yu P.; Marinova, K. P. Journal of Physics G: Nuclear and Particle Physics, Vol. 38, Issue 2 https://doi.org/10.1088/0954-3899/38/2/025104	journal	January 2011
On the "Magic Numbers" in Nuclear Structure Haxel, Otto; Jensen, J. Hans D.; Suess, Hans E. Physical Review, Vol. 75, Issue 11 https://doi.org/10.1103/PhysRev.75.1766.2	journal	June 1949
On Closed Shells in Nuclei. II Mayer, Maria Goeppert Physical Review, Vol. 75, Issue 12 https://doi.org/10.1103/PhysRev.75.1969	journal	June 1949
Beam energy determination via collinear laser spectroscopy König, Kristian; Minamisono, Kei; Lantis, Jeremy Physical Review A, Vol. 103, Issue 3 https://doi.org/10.1103/PhysRevA.103.032806	journal	March 2021
Isotope shifts and nuclear-charge radii in singly ionized Ca 40 – 48 Mårtensson-Pendrill, Ann-Marie; Ynnerman, Anders; Warston, Håkan Physical Review A, Vol. 45, Issue 7 https://doi.org/10.1103/PhysRevA.45.4675	journal	April 1992
Ab initio multishell valence-space Hamiltonians and the island of inversion Miyagi, T.; Stroberg, S. R.; Holt, J. D. Physical Review C, Vol. 102, Issue 3 https://doi.org/10.1103/PhysRevC.102.034320	journal	September 2020
Charge radii of exotic neon and magnesium isotopes Novario, S. J.; Hagen, G.; Jansen, G. R. Physical Review C, Vol. 102, Issue 5 https://doi.org/10.1103/PhysRevC.102.051303	journal	November 2020
Accurate bulk properties of nuclei from A = 2 to ∞ from potentials with Δ isobars Jiang, W. G.; Ekström, A.; Forssén, C. Physical Review C, Vol. 102, Issue 5 https://doi.org/10.1103/PhysRevC.102.054301	journal	November 2020
Isotope-shift measurements and King-fit analysis in nickel isotopes König, Kristian; Sommer, Felix; Lantis, Jeremy Physical Review C, Vol. 103, Issue 5 https://doi.org/10.1103/PhysRevC.103.054305	journal	May 2021
Nuclear charge densities in spherical and deformed nuclei: Toward precise calculations of charge radii Reinhard, Paul-Gerhard; Nazarewicz, Witold Physical Review C, Vol. 103, Issue 5 https://doi.org/10.1103/PhysRevC.103.054310	journal	May 2021
Charge radii in covariant density functional theory: A global view Perera, U. C.; Afanasjev, A. V.; Ring, P. Physical Review C, Vol. 104, Issue 6 https://doi.org/10.1103/PhysRevC.104.064313	journal	December 2021
Converged ab initio calculations of heavy nuclei Miyagi, T.; Stroberg, S. R.; Navrátil, P. Physical Review C, Vol. 105, Issue 1 https://doi.org/10.1103/PhysRevC.105.014302	journal	January 2022
Ground state magnetic dipole moment of Sc40 Powel, Robert; Brown, B. Alex; Holt, J. D. Physical Review C, Vol. 105, Issue 3 https://doi.org/10.1103/PhysRevC.105.034310	journal	March 2022
Systematics of E 2 strength in the s d shell with the valence-space in-medium similarity renormalization group Stroberg, S. R.; Henderson, J.; Hackman, G. Physical Review C, Vol. 105, Issue 3 https://doi.org/10.1103/PhysRevC.105.034333	journal	March 2022
Universal trend of charge radii of even-even Ca–Zn nuclei Kortelainen, Markus; Sun, Zhonghao; Hagen, Gaute Physical Review C, Vol. 105, Issue 2 https://doi.org/10.1103/PhysRevC.105.L021303	journal	February 2022
Statistical correlations of nuclear quadrupole deformations and charge radii Reinhard, Paul-Gerhard; Nazarewicz, Witold Physical Review C, Vol. 106, Issue 1 https://doi.org/10.1103/PhysRevC.106.014303	journal	July 2022
Variations on a theme by Skyrme: A systematic study of adjustments of model parameters Klüpfel, P.; Reinhard, P. -G.; Bürvenich, T. J. Physical Review C, Vol. 79, Issue 3 https://doi.org/10.1103/PhysRevC.79.034310	journal	March 2009
Isospin-breaking corrections to superallowed Fermi β decay in isospin- and angular-momentum-projected nuclear density functional theory Satuła, W.; Dobaczewski, J.; Nazarewicz, W. Physical Review C, Vol. 86, Issue 5 https://doi.org/10.1103/PhysRevC.86.054316	journal	November 2012
Charge radii of neutron-deficient K 36 and K 37 Rossi, D. M.; Minamisono, K.; Asberry, H. B. Physical Review C, Vol. 92, Issue 1 https://doi.org/10.1103/PhysRevC.92.014305	journal	July 2015
Nucleus-Dependent Valence-Space Approach to Nuclear Structure Stroberg, S. R.; Calci, A.; Hergert, H. Physical Review Letters, Vol. 118, Issue 3 https://doi.org/10.1103/PhysRevLett.118.032502	journal	January 2017
Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N = 82 Shell Closure Gorges, C.; Rodríguez, L. V.; Balabanski, D. L. Physical Review Letters, Vol. 122, Issue 19 https://doi.org/10.1103/PhysRevLett.122.192502	journal	May 2019
Charge Radii of Ni55,56 Reveal a Surprisingly Similar Behavior at N=28 in Ca and Ni Isotopes Sommer, Felix; König, Kristian; Rossi, Dominic M. Physical Review Letters, Vol. 129, Issue 13 https://doi.org/10.1103/PhysRevLett.129.132501	journal	September 2022
Ultrasensitive radioactive detection of collinear-laser optical pumping: Measurement of the nuclear charge radius of Ca 2 Vermeeren, L.; Silverans, R. E.; Lievens, P. Physical Review Letters, Vol. 68, Issue 11 https://doi.org/10.1103/PhysRevLett.68.1679	journal	March 1992
Magneto-optic Trapping of β -Decaying 38 K m , 37 K from an on-line Isotope Separator Behr, J. A.; Gorelov, A.; Swanson, T. Physical Review Letters, Vol. 79, Issue 3 https://doi.org/10.1103/PhysRevLett.79.375	journal	July 1997
Structure of the N = Z = 28 Closed Shell Studied by Monte Carlo Shell Model Calculation Otsuka, Takaharu; Honma, Michio; Mizusaki, Takahiro Physical Review Letters, Vol. 81, Issue 8 https://doi.org/10.1103/PhysRevLett.81.1588	journal	August 1998
On-Line Ion Cooling and Bunching for Collinear Laser Spectroscopy Nieminen, A.; Campbell, P.; Billowes, J. Physical Review Letters, Vol. 88, Issue 9 https://doi.org/10.1103/PhysRevLett.88.094801	journal	February 2002
Coupled-cluster theory in quantum chemistry Bartlett, Rodney J.; Musiał, Monika Reviews of Modern Physics, Vol. 79, Issue 1 https://doi.org/10.1103/RevModPhys.79.291	journal	February 2007
Nonempirical Interactions for the Nuclear Shell Model: An Update Stroberg, S. Ragnar; Hergert, Heiko; Bogner, Scott K. Annual Review of Nuclear and Particle Science, Vol. 69, Issue 1 https://doi.org/10.1146/annurev-nucl-101917-021120	journal	October 2019

Similar Records

Charge Radii of Neutron-Rich Scandium Isotopes and the Seniority Symmetry in the 0⁢𝑓_7/2 Shell

Journal Article · 2025 · Physical Review Letters · OSTI ID:3004116

Bai, S. W.; Yang, X. F.; Koszorús, Á.; +30 more

Unexpectedly large charge radii of neutron-rich calcium isotopes

Journal Article · 2016 · Nature Physics · OSTI ID:1376334

Garcia Ruiz, R. F.; Bissell, M. L.; Blaum, K.; +19 more

Ultrasensitive radioactive detection of collinear-laser optical pumping: Measurement of the nuclear charge radius of sup 2 Ca

Journal Article · 1992 · Physical Review Letters; (United States) · OSTI ID:7044108

Vermeeren, L; Silverans, R E; Lievens, P; +4 more

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
nuclear radii
nuclear structure & decays
radioactive beams
spectrometers
spectroscopic techniques

Title: Surprising Charge-Radius Kink in the Sc Isotopes at N = 20

Citation Formats

References (59)

Similar Records

Related Subjects