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Barzakh A, Andreyev AN, Raison C, Cubiss JG, Van Duppen P, Péru S, Hilaire S, Goriely S, Andel B, Antalic S, Al Monthery M, Berengut JC, Bieroń J, Bissell ML, Borschevsky A, Chrysalidis K, Cocolios TE, Day Goodacre T, Dognon JP, Elantkowska M, Eliav E, Farooq-Smith GJ, Fedorov DV, Fedosseev VN, Gaffney LP, Garcia Ruiz RF, Godefroid M, Granados C, Harding RD, Heinke R, Huyse M, Karls J, Larmonier P, Li JG, Lynch KM, Maison DE, Marsh BA, Molkanov P, Mosat P, Oleynichenko AV, Panteleev V, Pyykkö P, Reitsma ML, Rezynkina K, Rossel RE, Rothe S, Ruczkowski J, Schiffmann S, Seiffert C, Seliverstov MD, Sels S, Skripnikov LV, Stryjczyk M, Studer D, Verlinde M, Wilman S, Zaitsevskii AV. Large Shape Staggering in Neutron-Deficient Bi Isotopes. PHYSICAL REVIEW LETTERS 2021; 127:192501. [PMID: 34797155 DOI: 10.1103/physrevlett.127.192501] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 10/01/2021] [Accepted: 10/08/2021] [Indexed: 06/13/2023]
Abstract
The changes in the mean-square charge radius (relative to ^{209}Bi), magnetic dipole, and electric quadrupole moments of ^{187,188,189,191}Bi were measured using the in-source resonance-ionization spectroscopy technique at ISOLDE (CERN). A large staggering in radii was found in ^{187,188,189}Bi^{g}, manifested by a sharp radius increase for the ground state of ^{188}Bi relative to the neighboring ^{187,189}Bi^{g}. A large isomer shift was also observed for ^{188}Bi^{m}. Both effects happen at the same neutron number, N=105, where the shape staggering and a similar isomer shift were observed in the mercury isotopes. Experimental results are reproduced by mean-field calculations where the ground or isomeric states were identified by the blocked quasiparticle configuration compatible with the observed spin, parity, and magnetic moment.
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Affiliation(s)
- A Barzakh
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
| | - A N Andreyev
- Department of Physics, University of York, York YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan
| | - C Raison
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - J G Cubiss
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - S Péru
- Université Paris-Saclay, CEA, LMCE, 91680 Bruyères-le-Châtel, France
| | - S Hilaire
- Université Paris-Saclay, CEA, LMCE, 91680 Bruyères-le-Châtel, France
| | - S Goriely
- Institut d'Astronomie et d'Astrophysique, CP-226, Université Libre de Bruxelles, 1050 Brussels, Belgium
| | - B Andel
- Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, 84248 Bratislava, Slovakia
| | - S Antalic
- Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, 84248 Bratislava, Slovakia
| | - M Al Monthery
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - J C Berengut
- School of Physics, University of New South Wales, Sydney NSW 2052, Australia
| | - J Bieroń
- Instytut Fizyki Teoretycznej, Uniwersytet Jagielloński, ul. prof. Stanisława Łojasiewicza 11, Kraków, Poland
| | - M L Bissell
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - A Borschevsky
- Van Swinderen Institute, University of Groningen, 9747 Groningen, Netherlands
| | - K Chrysalidis
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
- Institut für Physik, Johannes Gutenberg-Universität, Mainz, D-55128 Mainz, Germany
| | - T E Cocolios
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - T Day Goodacre
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
- TRIUMF, 4004 Wesbrook Mall, Vancouver British Columbia V6T 2A3, Canada
| | - J-P Dognon
- NIMBE, CEA, CNRS, Universiteé Paris-Saclay, CEA Saclay, 91190 Gif-sur-Yvette, France
| | - M Elantkowska
- Poznan University of Technology, Piotrowo 3, Poznan 60-965, Poland
| | - E Eliav
- School of Chemistry, Tel Aviv University, 69978 Tel Aviv, Israel
| | - G J Farooq-Smith
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - D V Fedorov
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
| | - V N Fedosseev
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - L P Gaffney
- School of Engineering and Computing, University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - R F Garcia Ruiz
- School of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - M Godefroid
- SQUARES, CP160/09, Université libre de Bruxelles, Av. F.D. Roosevelt 50, 1050 Brussels, Belgium
| | - C Granados
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - R D Harding
- Department of Physics, University of York, York YO10 5DD, United Kingdom
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - R Heinke
- Institut für Physik, Johannes Gutenberg-Universität, Mainz, D-55128 Mainz, Germany
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - J Karls
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
- Department of Physics, University of Gothenburg, SE-412 96 Gothenburg, Sweden
| | - P Larmonier
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - J G Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - K M Lynch
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - D E Maison
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
- Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034 Russia
| | - B A Marsh
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - P Molkanov
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
| | - P Mosat
- Department of Nuclear Physics and Biophysics, Comenius University in Bratislava, 84248 Bratislava, Slovakia
| | - A V Oleynichenko
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1/3, Moscow, 119991 Russia
| | - V Panteleev
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
| | - P Pyykkö
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A. I. Virtasen aukio 1), FIN-00014 Helsinki, Finland
| | - M L Reitsma
- Van Swinderen Institute, University of Groningen, 9747 Groningen, Netherlands
| | - K Rezynkina
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - R E Rossel
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - S Rothe
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - J Ruczkowski
- Poznan University of Technology, Piotrowo 3, Poznan 60-965, Poland
| | - S Schiffmann
- SQUARES, CP160/09, Université libre de Bruxelles, Av. F.D. Roosevelt 50, 1050 Brussels, Belgium
| | - C Seiffert
- CERN, Esplanade des Particules 1, 1211 Geneva 23, Switzerland
| | - M D Seliverstov
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
| | - S Sels
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - L V Skripnikov
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
- Saint Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg, 199034 Russia
| | - M Stryjczyk
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
- University of Jyväskylä, Department of Physics, P.O. Box 35, FI-40014 Jyväskylä, Finland
| | - D Studer
- Institut für Physik, Johannes Gutenberg-Universität, Mainz, D-55128 Mainz, Germany
| | - M Verlinde
- KU Leuven, Instituut voor Kern- en Stralingsfysica, B-3001 Leuven, Belgium
| | - S Wilman
- Poznan University of Technology, Piotrowo 3, Poznan 60-965, Poland
| | - A V Zaitsevskii
- Petersburg Nuclear Physics Institute, NRC Kurchatov Institute, 188300 Gatchina, Russia
- Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie gory 1/3, Moscow, 119991 Russia
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