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Plattner P, Wood E, Al Ayoubi L, Beliuskina O, Bissell ML, Blaum K, Campbell P, Cheal B, de Groote RP, Devlin CS, Eronen T, Filippin L, Garcia Ruiz RF, Ge Z, Geldhof S, Gins W, Godefroid M, Heylen H, Hukkanen M, Imgram P, Jaries A, Jokinen A, Kanellakopoulos A, Kankainen A, Kaufmann S, König K, Koszorús Á, Kujanpää S, Lechner S, Malbrunot-Ettenauer S, Müller P, Mathieson R, Moore I, Nörtershäuser W, Nesterenko D, Neugart R, Neyens G, Ortiz-Cortes A, Penttilä H, Pohjalainen I, Raggio A, Reponen M, Rinta-Antila S, Rodríguez LV, Romero J, Sánchez R, Sommer F, Stryjczyk M, Virtanen V, Xie L, Xu ZY, Yang XF, Yordanov DT. Nuclear Charge Radius of ^{26m}Al and Its Implication for V_{ud} in the Quark Mixing Matrix. Phys Rev Lett 2023; 131:222502. [PMID: 38101341 DOI: 10.1103/physrevlett.131.222502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/09/2023] [Indexed: 12/17/2023]
Abstract
Collinear laser spectroscopy was performed on the isomer of the aluminium isotope ^{26m}Al. The measured isotope shift to ^{27}Al in the 3s^{2}3p ^{2}P_{3/2}^{○}→3s^{2}4s ^{2}S_{1/2} atomic transition enabled the first experimental determination of the nuclear charge radius of ^{26m}Al, resulting in R_{c}=3.130(15) fm. This differs by 4.5 standard deviations from the extrapolated value used to calculate the isospin-symmetry breaking corrections in the superallowed β decay of ^{26m}Al. Its corrected Ft value, important for the estimation of V_{ud} in the Cabibbo-Kobayashi-Maskawa matrix, is thus shifted by 1 standard deviation to 3071.4(1.0) s.
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Affiliation(s)
- P Plattner
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Universität Innsbruck, Innrain 52, 6020 Innsbruck, Austria
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - E Wood
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L Al Ayoubi
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - O Beliuskina
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - M L Bissell
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - K Blaum
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - P Campbell
- Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - B Cheal
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - R P de Groote
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - C S Devlin
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - T Eronen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - L Filippin
- Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Université libre de Bruxelles, 1050 Brussels, Belgium
| | - R F Garcia Ruiz
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, Massachusetts 02139, USA
| | - Z Ge
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - S Geldhof
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
| | - W Gins
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - M Godefroid
- Spectroscopy, Quantum Chemistry and Atmospheric Remote Sensing (SQUARES), Université libre de Bruxelles, 1050 Brussels, Belgium
| | - H Heylen
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - M Hukkanen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - P Imgram
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - A Jaries
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - A Jokinen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - A Kanellakopoulos
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
| | - A Kankainen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - S Kaufmann
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - K König
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - Á Koszorús
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
| | - S Kujanpää
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - S Lechner
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
| | - S Malbrunot-Ettenauer
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - P Müller
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - R Mathieson
- Department of Physics, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - I Moore
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - W Nörtershäuser
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - D Nesterenko
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - R Neugart
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Institut für Kernchemie, Universität Mainz, Fritz-Straßmann-Weg 2, 55128 Mainz, Germany
| | - G Neyens
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
| | - A Ortiz-Cortes
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - H Penttilä
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - I Pohjalainen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - A Raggio
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - M Reponen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - S Rinta-Antila
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - L V Rodríguez
- ISOLDE, CERN Experimental Physics Department, Geneva 23, 1211 Genevè, Switzerland
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- IJCLab, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France
| | - J Romero
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - R Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - F Sommer
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - M Stryjczyk
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - V Virtanen
- Department of Physics, University of Jyväskylä, P.O. Box 35 FI-40014, Jyväskylä, Finland
| | - L Xie
- Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
| | - Z Y Xu
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
| | - X F Yang
- Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, 209 Chengfu Road, 100871 Beijing, China
| | - D T Yordanov
- IJCLab, CNRS/IN2P3, Université Paris-Saclay, 91400 Orsay, France
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Malbrunot-Ettenauer S, Kaufmann S, Bacca S, Barbieri C, Billowes J, Bissell ML, Blaum K, Cheal B, Duguet T, Ruiz RFG, Gins W, Gorges C, Hagen G, Heylen H, Holt JD, Jansen GR, Kanellakopoulos A, Kortelainen M, Miyagi T, Navrátil P, Nazarewicz W, Neugart R, Neyens G, Nörtershäuser W, Novario SJ, Papenbrock T, Ratajczyk T, Reinhard PG, Rodríguez LV, Sánchez R, Sailer S, Schwenk A, Simonis J, Somà V, Stroberg SR, Wehner L, Wraith C, Xie L, Xu ZY, Yang XF, Yordanov DT. Nuclear Charge Radii of the Nickel Isotopes ^{58-68,70}Ni. Phys Rev Lett 2022; 128:022502. [PMID: 35089728 DOI: 10.1103/physrevlett.128.022502] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/05/2021] [Accepted: 10/22/2021] [Indexed: 06/14/2023]
Abstract
Collinear laser spectroscopy is performed on the nickel isotopes ^{58-68,70}Ni, using a time-resolved photon counting system. From the measured isotope shifts, nuclear charge radii R_{c} are extracted and compared to theoretical results. Three ab initio approaches all employ, among others, the chiral interaction NNLO_{sat}, which allows an assessment of their accuracy. We find agreement with experiment in differential radii δ⟨r_{c}^{2}⟩ for all employed ab initio methods and interactions, while the absolute radii are consistent with data only for NNLO_{sat}. Within nuclear density functional theory, the Skyrme functional SV-min matches experiment more closely than the Fayans functional Fy(Δr,HFB).
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Affiliation(s)
| | - S Kaufmann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - S Bacca
- Institut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
- Helmholtz-Institut Mainz, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - C Barbieri
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
- Dipartimento di Fisica, Università degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy
- INFN, Sezione di Milano, Via Celoria 16, 20133 Milano, Italy
| | - J Billowes
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - M L Bissell
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - K Blaum
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - B Cheal
- Oliver Lodge Laboratory, University of Liverpool, Oxford Street, Liverpool L69 7ZE, United Kingdom
| | - T Duguet
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - R F Garcia Ruiz
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - W Gins
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - C Gorges
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - G Hagen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - H Heylen
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - J D Holt
- TRIUMF 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
- Department of Physics, McGill University, Montréal, Quebec H3A 2T8, Canada
| | - G R Jansen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- National Center for Computational Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - A Kanellakopoulos
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - M Kortelainen
- Department of Physics, University of Jyväskylä, P.O. Box 35 (YFL), FI-40014 University of Jyväskylä, Finland
| | - T Miyagi
- TRIUMF 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - P Navrátil
- TRIUMF 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
| | - W Nazarewicz
- Department of Physics and Astronomy and FRIB Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Neugart
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - G Neyens
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - S J Novario
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - T Papenbrock
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - T Ratajczyk
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - P-G Reinhard
- Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - L V Rodríguez
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
| | - R Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Sailer
- Technische Universität München, D-80333 München, Germany
| | - A Schwenk
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - J Simonis
- Institut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - V Somà
- IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France
| | - S R Stroberg
- Department of Physics, University of Washington, Seattle, Washington, D.C. 98195, USA
| | - L Wehner
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - C Wraith
- Oliver Lodge Laboratory, University of Liverpool, Oxford Street, Liverpool L69 7ZE, United Kingdom
| | - L Xie
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Z Y Xu
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - X F Yang
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
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3
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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, Nörtershäuser W, Sánchez R, Sailer S, Schwenk A, Ratajczyk T, Rodríguez LV, Wehner L, Wraith C, Xie L, Xu ZY, Yang XF, Yordanov DT. Charge Radius of the Short-Lived ^{68}Ni and Correlation with the Dipole Polarizability. Phys Rev Lett 2020; 124:132502. [PMID: 32302185 DOI: 10.1103/physrevlett.124.132502] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/06/2020] [Accepted: 03/11/2020] [Indexed: 06/11/2023]
Abstract
We present the first laser spectroscopic measurement of the neutron-rich nucleus ^{68}Ni 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 ^{48}Ca. 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 ^{68}Ni.
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Affiliation(s)
- S Kaufmann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - J Simonis
- Institut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - S Bacca
- Institut für Kernphysik and PRISMA+ Cluster of Excellence, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
- Helmholtz Institute Mainz, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - J Billowes
- School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - M L Bissell
- School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - K Blaum
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - B Cheal
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - R F Garcia Ruiz
- School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - W Gins
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - C Gorges
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - G Hagen
- Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA and Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - H Heylen
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - A Kanellakopoulos
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | | | - M Miorelli
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, V6T 2A3, Canada
| | - R Neugart
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - G Neyens
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - R Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Sailer
- Technische Universität München, D-80333 München, Germany
| | - A Schwenk
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - T Ratajczyk
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - L V Rodríguez
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
| | - L Wehner
- Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
| | - C Wraith
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L Xie
- School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Z Y Xu
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - X F Yang
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
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4
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Gorges C, Rodríguez LV, Balabanski DL, Bissell ML, Blaum K, Cheal B, Garcia Ruiz RF, Georgiev G, Gins W, Heylen H, Kanellakopoulos A, Kaufmann S, Kowalska M, Lagaki V, Lechner S, Maaß B, Malbrunot-Ettenauer S, Nazarewicz W, Neugart R, Neyens G, Nörtershäuser W, Reinhard PG, Sailer S, Sánchez R, Schmidt S, Wehner L, Wraith C, Xie L, Xu ZY, Yang XF, Yordanov DT. Laser Spectroscopy of Neutron-Rich Tin Isotopes: A Discontinuity in Charge Radii across the N=82 Shell Closure. Phys Rev Lett 2019; 122:192502. [PMID: 31144969 DOI: 10.1103/physrevlett.122.192502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/22/2019] [Indexed: 06/09/2023]
Abstract
The change in mean-square nuclear charge radii δ⟨r^{2}⟩ along the even-A tin isotopic chain ^{108-134}Sn has been investigated by means of collinear laser spectroscopy at ISOLDE/CERN using the atomic transitions 5p^{2} ^{1}S_{0}→5p6 s^{1}P_{1} and 5p^{2} ^{3}P_{0}→5p6s ^{3}P_{1}. With the determination of the charge radius of ^{134}Sn and corrected values for some of the neutron-rich isotopes, the evolution of the charge radii across the N=82 shell closure is established. A clear kink at the doubly magic ^{132}Sn is revealed, similar to what has been observed at N=82 in other isotopic chains with larger proton numbers, and at the N=126 shell closure in doubly magic ^{208}Pb. While most standard nuclear density functional calculations struggle with a consistent explanation of these discontinuities, we demonstrate that a recently developed Fayans energy density functional provides a coherent description of the kinks at both doubly magic nuclei, ^{132}Sn and ^{208}Pb, without sacrificing the overall performance. A multiple correlation analysis leads to the conclusion that both kinks are related to pairing and surface effects.
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Affiliation(s)
- C Gorges
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - L V Rodríguez
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
| | - D L Balabanski
- ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania
| | - M L Bissell
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - K Blaum
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - B Cheal
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - R F Garcia Ruiz
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - G Georgiev
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
| | - W Gins
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
| | - H Heylen
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - A Kanellakopoulos
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
| | - S Kaufmann
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - M Kowalska
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - V Lagaki
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- Institut für Physik, Universität Greifswald, 17487 Greifswald, Germany
| | - S Lechner
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
- Technische Universität Wien, Karlsplatz 13, 1040 Wien, Austria
| | - B Maaß
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | | | - W Nazarewicz
- Department of Physics and Astronomy and FRIB Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Neugart
- Max-Planck-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
| | - G Neyens
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - P-G Reinhard
- Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - S Sailer
- Technische Universität München, D-80333 Munich, Germany
| | - R Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
| | - S Schmidt
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - L Wehner
- Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
| | - C Wraith
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L Xie
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Z Y Xu
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
| | - X F Yang
- Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
- School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China
| | - D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
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5
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Hammen M, Nörtershäuser W, Balabanski DL, Bissell ML, Blaum K, Budinčević I, Cheal B, Flanagan KT, Frömmgen N, Georgiev G, Geppert C, Kowalska M, Kreim K, Krieger A, Nazarewicz W, Neugart R, Neyens G, Papuga J, Reinhard PG, Rajabali MM, Schmidt S, Yordanov DT. From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of ^{100-130}Cd. Phys Rev Lett 2018; 121:102501. [PMID: 30240248 DOI: 10.1103/physrevlett.121.102501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Indexed: 06/08/2023]
Abstract
Differences in mean-square nuclear charge radii of ^{100-130}Cd are extracted from high-resolution collinear laser spectroscopy of the 5s ^{2}S_{1/2}→5p ^{2}P_{3/2} transition of the ion and from the 5s5p ^{3}P_{2}→5s6s ^{3}S_{1} transition in atomic Cd. The radii show a smooth parabolic behavior on top of a linear trend and a regular odd-even staggering across the almost complete sdgh shell. They serve as a first test for a recently established new Fayans functional and show a remarkably good agreement in the trend as well as in the total nuclear charge radius.
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Affiliation(s)
- M Hammen
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
| | - W Nörtershäuser
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - D L Balabanski
- INRNE, Bulgarian Academy of Science, BG-1784 Sofia, Bulgaria
| | - M L Bissell
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
- Photon Science Institute, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - K Blaum
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - I Budinčević
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - B Cheal
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - K T Flanagan
- Photon Science Institute, School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - N Frömmgen
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
| | - G Georgiev
- CSNSM-IN2P3-CNRS, Université de Paris Sud, F-91405 Orsay, France
| | - Ch Geppert
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - M Kowalska
- CERN European Organization for Nuclear Research, Physics Department, CH-1211 Geneva 23, Switzerland
| | - K Kreim
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - A Krieger
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - W Nazarewicz
- Department of Physics and Astronomy and FRIB Laboratory, Michigan State University, East Lansing, Michigan 48824, USA
| | - R Neugart
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - G Neyens
- CERN European Organization for Nuclear Research, Physics Department, CH-1211 Geneva 23, Switzerland
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - J Papuga
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - P-G Reinhard
- Institut für Theoretische Physik II, Universität Erlangen-Nürnberg, 91058 Erlangen, Germany
| | - M M Rajabali
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
| | - S Schmidt
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, Fritz-Straßmann Weg 2, 55128 Mainz, Germany
- Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstraße 9, 64289 Darmstadt, Germany
| | - D T Yordanov
- CERN European Organization for Nuclear Research, Physics Department, CH-1211 Geneva 23, Switzerland
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, F-91406 Orsay, France
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6
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Yang XF, Wraith C, Xie L, Babcock C, Billowes J, Bissell ML, Blaum K, Cheal B, Flanagan KT, Garcia Ruiz RF, Gins W, Gorges C, Grob LK, Heylen H, Kaufmann S, Kowalska M, Kraemer J, Malbrunot-Ettenauer S, Neugart R, Neyens G, Nörtershäuser W, Papuga J, Sánchez R, Yordanov DT. Publisher's Note: Isomer Shift and Magnetic Moment of the Long-Lived 1/2^{+} Isomer in _{30}^{79}Zn_{49}: Signature of Shape Coexistence near ^{78}Ni [Phys. Rev. Lett. 116, 182502 (2016)]. Phys Rev Lett 2016; 116:219901. [PMID: 27284676 DOI: 10.1103/physrevlett.116.219901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Indexed: 06/06/2023]
Abstract
This corrects the article DOI: 10.1103/PhysRevLett.116.182502.
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7
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Yang XF, Wraith C, Xie L, Babcock C, Billowes J, Bissell ML, Blaum K, Cheal B, Flanagan KT, Garcia Ruiz RF, Gins W, Gorges C, Grob LK, Heylen H, Kaufmann S, Kowalska M, Kraemer J, Malbrunot-Ettenauer S, Neugart R, Neyens G, Nörtershäuser W, Papuga J, Sánchez R, Yordanov DT. Isomer Shift and Magnetic Moment of the Long-Lived 1/2^{+} Isomer in _{30}^{79}Zn_{49}: Signature of Shape Coexistence near ^{78}Ni. Phys Rev Lett 2016; 116:182502. [PMID: 27203317 DOI: 10.1103/physrevlett.116.182502] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Indexed: 06/05/2023]
Abstract
Collinear laser spectroscopy is performed on the _{30}^{79}Zn_{49} isotope at ISOLDE-CERN. The existence of a long-lived isomer with a few hundred milliseconds half-life is confirmed, and the nuclear spins and moments of the ground and isomeric states in ^{79}Zn as well as the isomer shift are measured. From the observed hyperfine structures, spins I=9/2 and I=1/2 are firmly assigned to the ground and isomeric states. The magnetic moment μ (^{79}Zn)=-1.1866(10)μ_{N}, confirms the spin-parity 9/2^{+} with a νg_{9/2}^{-1} shell-model configuration, in excellent agreement with the prediction from large scale shell-model theories. The magnetic moment μ (^{79m}Zn)=-1.0180(12)μ_{N} supports a positive parity for the isomer, with a wave function dominated by a 2h-1p neutron excitation across the N=50 shell gap. The large isomer shift reveals an increase of the intruder isomer mean square charge radius with respect to that of the ground state, δ⟨r_{c}^{2}⟩^{79,79m}=+0.204(6) fm^{2}, providing first evidence of shape coexistence.
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Affiliation(s)
- X F Yang
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - C Wraith
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L Xie
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - C Babcock
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
- EN Department, CERN, CH-1211 Geneva 23, Switzerland
| | - J Billowes
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - M L Bissell
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - K Blaum
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - B Cheal
- Oliver Lodge Laboratory, Oxford Street, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - K T Flanagan
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - R F Garcia Ruiz
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - W Gins
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - C Gorges
- Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
| | - L K Grob
- Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - H Heylen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - S Kaufmann
- Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
- Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
| | - M Kowalska
- Experimental Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - J Kraemer
- Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
| | | | - R Neugart
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany
- Institut für Kernchemie, Universität Mainz, D-55128 Mainz, Germany
| | - G Neyens
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
| | - J Papuga
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - R Sánchez
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany
| | - D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
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8
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Yordanov DT, Balabanski DL, Bissell ML, Blaum K, Budinčević I, Cheal B, Flanagan K, Frömmgen N, Georgiev G, Geppert C, Hammen M, Kowalska M, Kreim K, Krieger A, Meng J, Neugart R, Neyens G, Nörtershäuser W, Rajabali MM, Papuga J, Schmidt S, Zhao PW. Simple Nuclear Structure in (111-129)Cd from Atomic Isomer Shifts. Phys Rev Lett 2016; 116:032501. [PMID: 26849588 DOI: 10.1103/physrevlett.116.032501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Indexed: 06/05/2023]
Abstract
Isomer shifts have been determined in ^{111-129}Cd by high-resolution laser spectroscopy at CERN-ISOLDE. The corresponding mean square charge-radii changes, from the 1/2^{+} and the 3/2^{+} ground states to the 11/2^{-} isomers, have been found to follow a distinct parabolic dependence as a function of the atomic mass number. Since the isomers have been previously associated with simplicity due to the linear mass dependence of their quadrupole moments, the regularity of the isomer shifts suggests a higher order of symmetry affecting the ground states in addition. A comprehensive description assuming nuclear deformation is found to accurately reproduce the radii differences in conjunction with the known quadrupole moments. This intuitive interpretation is supported by covariant density functional theory.
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Affiliation(s)
- D T Yordanov
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- CERN European Organization for Nuclear Research, Physics Department, 1211 Geneva 23, Switzerland
| | - D L Balabanski
- ELI-NP, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, 077125 Magurele, Romania
| | - M L Bissell
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - K Blaum
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - I Budinčević
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - B Cheal
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, United Kingdom
| | - K Flanagan
- School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, United Kingdom
| | - N Frömmgen
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | - G Georgiev
- CSNSM, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91405 Orsay, France
| | - Ch Geppert
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - M Hammen
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | - M Kowalska
- CERN European Organization for Nuclear Research, Physics Department, 1211 Geneva 23, Switzerland
| | - K Kreim
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - A Krieger
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | - J Meng
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China
| | - R Neugart
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
| | - G Neyens
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, 55128 Mainz, Germany
- Institut fur Kernphysik, Technische Universität Darmstadt, 64289 Darmstadt, Germany
| | - M M Rajabali
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - J Papuga
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - S Schmidt
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
| | - P W Zhao
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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9
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Bissell ML, Papuga J, Naïdja H, Kreim K, Blaum K, De Rydt M, Garcia Ruiz RF, Heylen H, Kowalska M, Neugart R, Neyens G, Nörtershäuser W, Nowacki F, Rajabali MM, Sanchez R, Sieja K, Yordanov DT. Proton-neutron pairing correlations in the self-conjugate nucleus (38)K probed via a direct measurement of the isomer shift. Phys Rev Lett 2014; 113:052502. [PMID: 25126913 DOI: 10.1103/physrevlett.113.052502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Indexed: 06/03/2023]
Abstract
A marked difference in the nuclear charge radius was observed between the I^{π}=3^{+} ground state and the I^{π}=0^{+} isomer of ^{38}K and is qualitatively explained using an intuitive picture of proton-neutron pairing. In a high-precision measurement of the isomer shift using bunched-beam collinear laser spectroscopy at CERN-ISOLDE, a change in the mean-square charge radius of ⟨r_{c}^{2}⟩(^{38}K^{m})-⟨r_{c}^{2}⟩(^{38}K^{g})=0.100(6) fm^{2} was obtained. This is an order of magnitude more accurate than the result of a previous indirect measurement from which it was concluded that both long-lived states in ^{38}K have similar charge radii. Our observation leads to a substantially different understanding since the difference in charge radius is, moreover, opposite in sign to previously reported theoretical predictions. It is demonstrated that the observed isomer shift can be reproduced by large-scale shell-model calculations including proton and neutron excitations across the N,Z=20 shell gaps, confirming the significance of cross-shell correlations in the region of ^{40}Ca.
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Affiliation(s)
- M L Bissell
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - J Papuga
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - H Naïdja
- Université de Strasbourg, IPHC, 23 rue du Loess 67037 Strasbourg, France CNRS, UMR7178, 67037 Strasbourg, France and GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany and Laboratoire de Physique Mathématique et Subatomique, Constantine 1 University, Constantine 25000, Algeria
| | - K Kreim
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - K Blaum
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany
| | - M De Rydt
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - R F Garcia Ruiz
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - H Heylen
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - M Kowalska
- Physics Department, CERN, CH-1211 Geneva 23, Switzerland
| | - R Neugart
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany and Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
| | - G Neyens
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - W Nörtershäuser
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany and Institut für Kernphysik, TU Darmstadt, D-64289 Darmstadt, Germany
| | - F Nowacki
- Université de Strasbourg, IPHC, 23 rue du Loess 67037 Strasbourg, France CNRS, UMR7178, 67037 Strasbourg, France
| | - M M Rajabali
- KU Leuven, Instituut voor Kern-en Stralingsfysica, B-3001 Leuven, Belgium
| | - R Sanchez
- GSI Helmholtzzentrum für Schwerionenforschung, D-64291 Darmstadt, Germany and Helmholtz-Institut Mainz, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - K Sieja
- Université de Strasbourg, IPHC, 23 rue du Loess 67037 Strasbourg, France CNRS, UMR7178, 67037 Strasbourg, France
| | - D T Yordanov
- Max-Plank-Institut für Kernphysik, D-69117 Heidelberg, Germany
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10
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Yordanov DT, Balabanski DL, Bieroń J, Bissell ML, Blaum K, Budinčević I, Fritzsche S, Frömmgen N, Georgiev G, Geppert C, Hammen M, Kowalska M, Kreim K, Krieger A, Neugart R, Nörtershäuser W, Papuga J, Schmidt S. Spins, electromagnetic moments, and isomers of (107-129)Cd. Phys Rev Lett 2013; 110:192501. [PMID: 23705701 DOI: 10.1103/physrevlett.110.192501] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Indexed: 06/02/2023]
Abstract
The neutron-rich isotopes of cadmium up to the N=82 shell closure have been investigated by high-resolution laser spectroscopy. Deep-uv excitation at 214.5 nm and radioactive-beam bunching provided the required experimental sensitivity. Long-lived isomers are observed in (127)Cd and (129)Cd for the first time. One essential feature of the spherical shell model is unambiguously confirmed by a linear increase of the 11/2(-) quadrupole moments. Remarkably, this mechanism is found to act well beyond the h(11/2) shell.
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Affiliation(s)
- D T Yordanov
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
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11
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Papuga J, Bissell ML, Kreim K, Blaum K, Brown BA, De Rydt M, Garcia Ruiz RF, Heylen H, Kowalska M, Neugart R, Neyens G, Nörtershäuser W, Otsuka T, Rajabali MM, Sánchez R, Utsuno Y, Yordanov DT. Spins and magnetic moments of 49K and 51K: establishing the 1/2+ and 3/2+ level ordering beyond N = 28. Phys Rev Lett 2013; 110:172503. [PMID: 23679713 DOI: 10.1103/physrevlett.110.172503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Indexed: 06/02/2023]
Abstract
The ground-state spins and magnetic moments of (49,51)K have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE CERN. For 49K a ground-state spin I = 1/2 was firmly established. The observed hyperfine structure of 51K requires a spin I > 1/2 and strongly suggests I = 3/2. From its magnetic moment μ(51K) = +0.5129(22)μ(N) a spin-parity I(π) = 3/2+ with a dominant π1d(3/2)(-1) hole configuration was deduced. This establishes for the first time the reinversion of the single-particle levels and illustrates the prominent role of the residual monopole interaction for single-particle levels and shell evolution.
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Affiliation(s)
- J Papuga
- Instituut voor Kern-en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium.
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12
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Krieger A, Blaum K, Bissell ML, Frömmgen N, Geppert C, Hammen M, Kreim K, Kowalska M, Krämer J, Neff T, Neugart R, Neyens G, Nörtershäuser W, Novotny C, Sánchez R, Yordanov DT. Nuclear charge radius of 12Be. Phys Rev Lett 2012; 108:142501. [PMID: 22540787 DOI: 10.1103/physrevlett.108.142501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Indexed: 05/31/2023]
Abstract
The nuclear charge radius of (12)Be was precisely determined using the technique of collinear laser spectroscopy on the 2s(1/2)→2p(1/2,3/2) transition in the Be(+) ion. The mean square charge radius increases from (10)Be to (12)Be by δ<r(c)(2)>(10,12)=0.69(5) fm(2) compared to δ<r(c)(2)>(10,11)=0.49(5) fm(2) for the one-neutron halo isotope ^{11}Be. Calculations in the fermionic molecular dynamics approach show a strong sensitivity of the charge radius to the structure of ^{12}Be. The experimental charge radius is consistent with a breakdown of the N=8 shell closure.
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Affiliation(s)
- A Krieger
- Institut für Kernchemie, Johannes Gutenberg-Universität Mainz, D-55128 Mainz, Germany
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13
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Yordanov DT, Bissell ML, Blaum K, De Rydt M, Geppert C, Kowalska M, Krämer J, Kreim K, Krieger A, Lievens P, Neff T, Neugart R, Neyens G, Nörtershäuser W, Sánchez R, Vingerhoets P. Nuclear charge radii of (21-32)Mg. Phys Rev Lett 2012; 108:042504. [PMID: 22400831 DOI: 10.1103/physrevlett.108.042504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Indexed: 05/31/2023]
Abstract
Charge radii of all magnesium isotopes in the sd shell have been measured, revealing evolution of the nuclear shape throughout two prominent regions of assumed deformation centered on (24)Mg and (32)Mg. A striking correspondence is found between the nuclear charge radius and the neutron shell structure. The importance of cluster configurations towards N=8 and collectivity near N=20 is discussed in the framework of the fermionic molecular dynamics model. These essential results have been made possible by the first application of laser-induced nuclear orientation for isotope shift measurements.
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Affiliation(s)
- D T Yordanov
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
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14
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Cheal B, Mané E, Billowes J, Bissell ML, Blaum K, Brown BA, Charlwood FC, Flanagan KT, Forest DH, Geppert C, Honma M, Jokinen A, Kowalska M, Krieger A, Krämer J, Moore ID, Neugart R, Neyens G, Nörtershäuser W, Schug M, Stroke HH, Vingerhoets P, Yordanov DT, Záková M. Nuclear spins and moments of Ga isotopes reveal sudden structural changes between N=40 and N=50. Phys Rev Lett 2010; 104:252502. [PMID: 20867369 DOI: 10.1103/physrevlett.104.252502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2010] [Indexed: 05/29/2023]
Abstract
Collinear laser spectroscopy was performed on Ga (Z=31) isotopes at ISOLDE, CERN. A gas-filled linear Paul trap (ISCOOL) was used to extend measurements towards very neutron-rich isotopes (N=36-50). A ground state (g.s.) spin I=1/2 is measured for 73Ga, being near degenerate with a 3/2{-} isomer (75 eV≲E{ex}≲1 keV). The 79Ga g.s., with I=3/2, is dominated by protons in the πf{5/2} orbital and in 81Ga the 5/2{-} level becomes the g.s. The data are compared to shell-model calculations in the f{5/2}pg{9/2} model space, calling for further theoretical developments and new experiments.
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Affiliation(s)
- B Cheal
- School of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, United Kingdom.
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15
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Yordanov DT, Blaum K, De Rydt M, Kowalska M, Neugart R, Neyens G, Hamamoto I. Comment on "Intruder configurations in the A=33 isobars: 33Mg and 33Al". Phys Rev Lett 2010; 104:129201-129202. [PMID: 20366572 DOI: 10.1103/physrevlett.104.129201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2009] [Revised: 10/09/2009] [Indexed: 05/29/2023]
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16
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Flanagan KT, Vingerhoets P, Avgoulea M, Billowes J, Bissell ML, Blaum K, Cheal B, De Rydt M, Fedosseev VN, Forest DH, Geppert C, Köster U, Kowalska M, Krämer J, Kratz KL, Krieger A, Mané E, Marsh BA, Materna T, Mathieu L, Molkanov PL, Neugart R, Neyens G, Nörtershäuser W, Seliverstov MD, Serot O, Schug M, Sjoedin MA, Stone JR, Stone NJ, Stroke HH, Tungate G, Yordanov DT, Volkov YM. Nuclear spins and magnetic moments of 71,73,75Cu: inversion of pi2p3/2 and pi1f5/2 levels in 75Cu. Phys Rev Lett 2009; 103:142501. [PMID: 19905565 DOI: 10.1103/physrevlett.103.142501] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Indexed: 05/28/2023]
Abstract
We report the first confirmation of the predicted inversion between the pi2p3/2 and pi1f5/2 nuclear states in the nu(g)9/2 midshell. This was achieved at the ISOLDE facility, by using a combination of in-source laser spectroscopy and collinear laser spectroscopy on the ground states of 71,73,75Cu, which measured the nuclear spin and magnetic moments. The obtained values are mu(71Cu)=+2.2747(8)mu(N), mu(73Cu)=+1.7426(8)mu(N), and mu(75Cu)=+1.0062(13)mu(N) corresponding to spins I=3/2 for 71,73Cu and I=5/2 for 75Cu. The results are in fair agreement with large-scale shell-model calculations.
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Affiliation(s)
- K T Flanagan
- Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
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17
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Nörtershäuser W, Tiedemann D, Záková M, Andjelkovic Z, Blaum K, Bissell ML, Cazan R, Drake GWF, Geppert C, Kowalska M, Krämer J, Krieger A, Neugart R, Sánchez R, Schmidt-Kaler F, Yan ZC, Yordanov DT, Zimmermann C. Nuclear charge radii of 7,9,10Be and the one-neutron halo nucleus 11Be. Phys Rev Lett 2009; 102:062503. [PMID: 19257582 DOI: 10.1103/physrevlett.102.062503] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2008] [Indexed: 05/27/2023]
Abstract
Nuclear charge radii of ;{7,9,10,11}Be have been determined by high-precision laser spectroscopy. On-line measurements were performed with collinear laser spectroscopy in the 2s_{1/2}-->2p_{1/2} transition on a beam of Be+ ions. Collinear and anticollinear laser beams were used simultaneously, and the absolute frequency determination using a frequency comb yielded an accuracy in the isotope-shift measurements of about 1 MHz. Combining this with accurate calculations of the mass-dependent isotope shifts yields nuclear charge radii. The charge radius decreases from 7Be to 10Be and then increases for the halo nucleus 11Be. When comparing our results with predictions of ab initio nuclear-structure calculations we find good agreement. Additionally, the nuclear magnetic moment of 7Be was determined to be -1.3995(5)micro_{N} and that of 11Be was confirmed with an accuracy similar to previous beta-NMR measurements.
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Affiliation(s)
- W Nörtershäuser
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, D-64291 Darmstadt, Germany
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18
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Geithner W, Neff T, Audi G, Blaum K, Delahaye P, Feldmeier H, George S, Guénaut C, Herfurth F, Herlert A, Kappertz S, Keim M, Kellerbauer A, Kluge HJ, Kowalska M, Lievens P, Lunney D, Marinova K, Neugart R, Schweikhard L, Wilbert S, Yazidjian C. Masses and charge radii of 17-22Ne and the two-proton-halo candidate 17Ne. Phys Rev Lett 2008; 101:252502. [PMID: 19113701 DOI: 10.1103/physrevlett.101.252502] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2008] [Indexed: 05/27/2023]
Abstract
High-precision mass and charge radius measurements on ;{17-22}Ne, including the proton-halo candidate 17Ne, have been performed with Penning trap mass spectrometry and collinear laser spectroscopy. The 17Ne mass uncertainty is improved by factor 50, and the charge radii of ;{17-19}Ne are determined for the first time. The fermionic molecular dynamics model explains the pronounced changes in the ground-state structure. It attributes the large charge radius of 17Ne to an extended proton configuration with an s;{2} component of about 40%. In 18Ne the smaller radius is due to a significantly smaller s;{2} component. The radii increase again for ;{19-22}Ne due to cluster admixtures.
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Affiliation(s)
- W Geithner
- Institut für Physik, Johannes Gutenberg-Universität, 55099 Mainz, Germany
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19
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Neugart R, Balabanski DL, Blaum K, Borremans D, Himpe P, Kowalska M, Lievens P, Mallion S, Neyens G, Vermeulen N, Yordanov DT. Precision measurement of 11Li moments: influence of halo neutrons on the 9Li core. Phys Rev Lett 2008; 101:132502. [PMID: 18851441 DOI: 10.1103/physrevlett.101.132502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2008] [Indexed: 05/26/2023]
Abstract
The electric quadrupole moment and the magnetic moment of the 11Li halo nucleus have been measured with more than an order of magnitude higher precision than before, |Q| = 33.3(5) mb and mu = +3.6712(3)muN, revealing a 8.8(1.5)% increase of the quadrupole moment relative to that of 9Li. This result is compared to various models that aim at describing the halo properties. In the shell model an increased quadrupole moment points to a significant occupation of the 1d orbits, whereas in a simple halo picture this can be explained by relating the quadrupole moments of the proton distribution to the charge radii. Advanced models so far fail to reproduce simultaneously the trends observed in the radii and quadrupole moments of the lithium isotopes.
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Affiliation(s)
- R Neugart
- Institut für Physik, Universität Mainz, D-55099 Mainz, Germany
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20
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Yordanov DT, Kowalska M, Blaum K, De Rydt M, Flanagan KT, Lievens P, Neugart R, Neyens G, Stroke HH. Spin and magnetic moment of 33Mg: evidence for a negative-parity intruder ground state. Phys Rev Lett 2007; 99:212501. [PMID: 18233211 DOI: 10.1103/physrevlett.99.212501] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2007] [Indexed: 05/25/2023]
Abstract
We report on the first determination of the nuclear ground-state spin of 33Mg, I=3/2, and its magnetic moment, mu= -0.7456(5) mu(N), by combining laser spectroscopy with nuclear magnetic resonance techniques. These values are inconsistent with an earlier suggested 1 particle-1 hole configuration and provide evidence for a 2 particle-2 hole intruder ground state with negative parity. The results are in agreement with an odd-neutron occupation of the 3/2 [321] Nilsson orbital at a large prolate deformation. The discussion emphasizes the need of further theoretical and experimental investigation of the island of inversion, a region previously thought to be well understood.
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Affiliation(s)
- D T Yordanov
- Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
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21
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Neyens G, Kowalska M, Yordanov D, Blaum K, Himpe P, Lievens P, Mallion S, Neugart R, Vermeulen N, Utsuno Y, Otsuka T. Measurement of the spin and magnetic moment of 31Mg: evidence for a strongly deformed intruder ground state. Phys Rev Lett 2005; 94:022501. [PMID: 15698167 DOI: 10.1103/physrevlett.94.022501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2004] [Indexed: 05/24/2023]
Abstract
Unambiguous values of the spin and magnetic moment of 31Mg are obtained by combining the results of a hyperfine-structure measurement and a beta-NMR measurement, both performed with an optically polarized ion beam. With a measured nuclear g factor and spin I=1/2, the magnetic moment mu(31Mg)=-0.88355(15)mu(N) is deduced. A revised level scheme of 31Mg (Z=12, N=19) with ground state spin/parity I(pi)=1/2(+) is presented, revealing the coexistence of 1p-1h and 2p-2h intruder states below 500 keV. Advanced shell-model calculations and the Nilsson model suggest that the I(pi)=1/2(+) ground state is a strongly prolate deformed intruder state. This result plays a key role for the understanding of nuclear structure changes due to the disappearance of the N=20 shell gap in neutron-rich nuclei.
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Affiliation(s)
- G Neyens
- Instituut voor Kern- en Stralingsfysica, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium
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22
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Anne R, Bazin D, Bimbot R, Borge MJG, Corre JM, Dogny S, Emling H, Guillemaud-Mueller D, Hansen PG, Hornsh�j P, Jensen P, Jonson B, Lewitowicz M, Mueller AC, Neugart R, Nilsson T, Nyman G, Pougheon F, Saint-Laurent MG, Schrieder G, Sorlin O, Tengblad O, Wilhelmsen-Rolander K. Projectile Coulomb excitation with fast radioactive beams. ACTA ACUST UNITED AC 1995. [DOI: 10.1007/bf01299757] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Lievens P, Vermeeren L, Silverans RE, Arnold E, Neugart R, Wendt K, Buchinger F. Spin, moments, and mean square nuclear charge radius of 77Sr. Phys Rev C Nucl Phys 1992; 46:797-800. [PMID: 9968178 DOI: 10.1103/physrevc.46.797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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24
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Mårtensson-Pendrill AM, Ynnerman A, Warston H, Vermeeren L, Silverans RE, Klein A, Neugart R, Schulz C, Lievens P, The ISOLDE. Isotope shifts and nuclear-charge radii in singly ionized 40-48Ca. Phys Rev A 1992; 45:4675-4681. [PMID: 9907548 DOI: 10.1103/physreva.45.4675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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25
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Vermeeren L, Silverans RE, Lievens P, Klein A, Neugart R, Schulz C, Buchinger F. Ultrasensitive radioactive detection of collinear-laser optical pumping: Measurement of the nuclear charge radius of 2Ca. Phys Rev Lett 1992; 68:1679-1682. [PMID: 10045193 DOI: 10.1103/physrevlett.68.1679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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26
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Silverans RE, Vermeeren L, Neugart R, Lievens P. Hyperfine structure constants of the CaII states 4s 2 S 1/2 and 4p 2 P 1/2, 3/2 and the nuclear quadrupole moment of43Ca. ACTA ACUST UNITED AC 1991. [DOI: 10.1007/bf01426597] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Panigrahy SN, Dougherty RW, Ahmad S, Mishra KC, Das TP, Andriessen J, Neugart R, Otten EW, Wendt K. Evaluation of the magnetic moment of 213Ra. Phys Rev A 1991; 43:2215-2222. [PMID: 9905269 DOI: 10.1103/physreva.43.2215] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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28
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Buchinger F, Ramsay EB, Arnold E, Neu W, Neugart R, Wendt K, Silverans RE, Lievens P, Vermeeren L, Berdichevsky D, Fleming R, Sprung DW, Ulm G. Erratum: Systematics of nuclear ground state properties in 78-100Sr by laser spectroscopy. Phys Rev C Nucl Phys 1990; 42:2754. [PMID: 9967032 DOI: 10.1103/physrevc.42.2754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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29
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Neugart R, Otten EW, Wendt K, Ahmad S, Panigrahy N, Dougherty RW, Mishra KC, Das TP, Andriessen J. Evaluation of the magnetic moments of radium isotopes. ACTA ACUST UNITED AC 1990. [DOI: 10.1007/bf02401210] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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30
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Buchinger F, Ramsay EB, Arnold E, Neu W, Neugart R, Wendt K, Silverans RE, Lievens P, Vermeeren L, Berdichevsky D, Fleming R, Sprung DW, Ulm G. Systematics of nuclear ground state properties in 78-100Sr by laser spectroscopy. Phys Rev C Nucl Phys 1990; 41:2883-2897. [PMID: 9966670 DOI: 10.1103/physrevc.41.2883] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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31
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Saint-Laurent MG, Anne R, Bazin D, Guillemaud-Mueller D, Jahnke U, Ming JG, Mueller AC, Bruandet JF, Glasser F, Kox S, Liatard E, Chan TU, Costa GJ, Heitz C, El-Masri Y, Hanappe F, Bimbot R, Arnold E, Neugart R. Total cross sections of reactions induced by neutron-rich light nuclei. ACTA ACUST UNITED AC 1989. [DOI: 10.1007/bf01292431] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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32
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Arnold E, Bonn J, Neu W, Neugart R, Orten EW. Quadrupole interaction of8Li and9Li in LiNbO3 and the quadrupole moment of9Li. ACTA ACUST UNITED AC 1988. [DOI: 10.1007/bf01355599] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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33
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Silverans RE, Lievens P, Vermeeren L, Arnold E, Neu W, Neugart R, Wendt K, Buchinger F, Ramsay EB, Ulm G. Nuclear charge radii of 78-100Sr by nonoptical detection in fast-beam laser spectroscopy. Phys Rev Lett 1988; 60:2607-2610. [PMID: 10038402 DOI: 10.1103/physrevlett.60.2607] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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34
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Neu W, Neugart R, Otten EW, Passler G, Wendt K, Fricke B, Arnold E, Kluge HJ, Ulm G. Quadrupole moments of radium isotopes from the 7p 2 P 3/2 hyperfine structure in Ra II. ACTA ACUST UNITED AC 1988. [DOI: 10.1007/bf01444425] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Kitano M, Calaprice FP, Pitt ML, Clayhold J, Happer W, Kadar-Kallen M, Musolf M, Ulm G, Wendt K, Chupp T, Bonn J, Neugart R, Otten E, Duong HT. Nuclear orientation of radon isotopes by spin-exchange optical pumping. Phys Rev Lett 1988; 60:2133-2136. [PMID: 10038268 DOI: 10.1103/physrevlett.60.2133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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36
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Arnold E, Borchers W, Carre M, Duong HT, Juncar P, Lerme J, Liberman S, Neu W, Neugart R, Otten EW, Pellarin M, Pinard J, Ulm G, Vialle JL, Wendt K. Direct measurement of nuclear magnetic moments of radium isotopes. Phys Rev Lett 1987; 59:771-774. [PMID: 10035867 DOI: 10.1103/physrevlett.59.771] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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37
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Ulm G, Bhattacherjee SK, Dabkiewicz P, Huber G, Kluge HJ, K�hl T, Lochmann H, Otten EW, Wendt K, Ahmad SA, Klempt W, Neugart R. Isotope shift of182Hg and an update of nuclear moments and charge radii in the isotope range181Hg-206Hg. ACTA ACUST UNITED AC 1986. [DOI: 10.1007/bf01294605] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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39
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Wendt K, Ahmad SA, Buchinger F, Mueller AC, Neugart R, Otten EW. Relativistic J-dependence of the isotope shift in the 6s-6p doublet of Ba II. ACTA ACUST UNITED AC 1984. [DOI: 10.1007/bf01413460] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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