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Yakushev A, Lens L, Düllmann CE, Khuyagbaatar J, Jäger E, Krier J, Runke J, Albers HM, Asai M, Block M, Despotopulos J, Di Nitto A, Eberhardt K, Forsberg U, Golubev P, Götz M, Götz S, Haba H, Harkness-Brennan L, Herzberg RD, Heßberger FP, Hinde D, Hübner A, Judson D, Kindler B, Komori Y, Konki J, Kratz J, Kurz N, Laatiaoui M, Lahiri S, Lommel B, Maiti M, Mistry AK, Mokry C, Moody KJ, Nagame Y, Omtvedt JP, Papadakis P, Pershina V, Rudolph D, Samiento L, Sato T, Schädel M, Scharrer P, Schausten B, Shaughnessy DA, Steiner J, Thörle-Pospiech P, Toyoshima A, Trautmann N, Tsukada K, Uusitalo J, Voss KO, Ward A, Wegrzecki M, Wiehl N, Williams E, Yakusheva V. On the adsorption and reactivity of element 114, flerovium. Front Chem 2022; 10:976635. [PMID: 36092655 PMCID: PMC9453156 DOI: 10.3389/fchem.2022.976635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 07/19/2022] [Indexed: 12/01/2022] Open
Abstract
Flerovium (Fl, element 114) is the heaviest element chemically studied so far. To date, its interaction with gold was investigated in two gas-solid chromatography experiments, which reported two different types of interaction, however, each based on the level of a few registered atoms only. Whereas noble-gas-like properties were suggested from the first experiment, the second one pointed at a volatile-metal-like character. Here, we present further experimental data on adsorption studies of Fl on silicon oxide and gold surfaces, accounting for the inhomogeneous nature of the surface, as it was used in the experiment and analyzed as part of the reported studies. We confirm that Fl is highly volatile and the least reactive member of group 14. Our experimental observations suggest that Fl exhibits lower reactivity towards Au than the volatile metal Hg, but higher reactivity than the noble gas Rn.
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Affiliation(s)
- A. Yakushev
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- *Correspondence: A. Yakushev,
| | - L. Lens
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Ch. E. Düllmann
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - J. Khuyagbaatar
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - E. Jäger
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - J. Krier
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - J. Runke
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - H. M. Albers
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - M. Asai
- Japan Atomic Energy Agency, Tokai, Japan
| | - M. Block
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - J. Despotopulos
- Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - A. Di Nitto
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - K. Eberhardt
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | | | - M. Götz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - S. Götz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | | | | | - F. P. Heßberger
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - D. Hinde
- Australian National University, Canberra, ACT, Australia
| | - A. Hübner
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - D. Judson
- University of Liverpool, Liverpool, United Kingdom
| | - B. Kindler
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | | | - J. Konki
- University of Jyväskylä, Jyväskylä, Finland
| | - J.V. Kratz
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - N. Kurz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - M. Laatiaoui
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - S. Lahiri
- Saha Institute of Nuclear Physics, Kolkata, India
| | - B. Lommel
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - M. Maiti
- Indian Institute of Technology Roorkee, Roorkee, India
| | - A. K. Mistry
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - Ch. Mokry
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - K. J. Moody
- Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Y. Nagame
- Japan Atomic Energy Agency, Tokai, Japan
| | | | - P. Papadakis
- University of Liverpool, Liverpool, United Kingdom
| | - V. Pershina
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | | | | | - T.K. Sato
- Japan Atomic Energy Agency, Tokai, Japan
| | - M. Schädel
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - P. Scharrer
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - B. Schausten
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - D. A. Shaughnessy
- Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - J. Steiner
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - P. Thörle-Pospiech
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | - N. Trautmann
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - K. Tsukada
- Japan Atomic Energy Agency, Tokai, Japan
| | | | - K.-O. Voss
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - A. Ward
- University of Liverpool, Liverpool, United Kingdom
| | - M. Wegrzecki
- Łukasiewicz Research Network—Institute of Electron Technology, Warsaw, Poland
| | - N. Wiehl
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - E. Williams
- Australian National University, Canberra, ACT, Australia
| | - V. Yakusheva
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
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2
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Yakushev A, Lens L, Düllmann CE, Block M, Brand H, Calverley T, Dasgupta M, Di Nitto A, Götz M, Götz S, Haba H, Harkness-Brennan L, Herzberg RD, Heßberger FP, Hinde D, Hübner A, Jäger E, Judson D, Khuyagbaatar J, Kindler B, Komori Y, Konki J, Kratz J, Krier J, Kurz N, Laatiaoui M, Lommel B, Lorenz C, Maiti M, Mistry A, Mokry C, Nagame Y, Papadakis P, Såmark-Roth A, Rudolph D, Runke J, Sarmiento L, Sato T, Schädel M, Scharrer P, Schausten B, Steiner J, Thörle-Pospiech P, Toyoshima A, Trautmann N, Uusitalo J, Ward A, Wegrzecki M, Yakusheva V. First Study on Nihonium (Nh, Element 113) Chemistry at TASCA. Front Chem 2021; 9:753738. [PMID: 34917588 PMCID: PMC8669335 DOI: 10.3389/fchem.2021.753738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 10/27/2021] [Indexed: 11/13/2022] Open
Abstract
Nihonium (Nh, element 113) and flerovium (Fl, element 114) are the first superheavy elements in which the 7p shell is occupied. High volatility and inertness were predicted for Fl due to the strong relativistic stabilization of the closed 7p 1/2 sub-shell, which originates from a large spin-orbit splitting between the 7p 1/2 and 7p 3/2 orbitals. One unpaired electron in the outermost 7p 1/2 sub-shell in Nh is expected to give rise to a higher chemical reactivity. Theoretical predictions of Nh reactivity are discussed, along with results of the first experimental attempts to study Nh chemistry in the gas phase. The experimental observations verify a higher chemical reactivity of Nh atoms compared to its neighbor Fl and call for the development of advanced setups. First tests of a newly developed detection device miniCOMPACT with highly reactive Fr isotopes assure that effective chemical studies of Nh are within reach.
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Affiliation(s)
- A. Yakushev
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - L. Lens
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Ch. E. Düllmann
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - M. Block
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - H. Brand
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - T. Calverley
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - M. Dasgupta
- Department of Nuclear Physics, Australian National University, Canberra, ACT, Australia
| | - A. Di Nitto
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - M. Götz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - S. Götz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | | | - R-D. Herzberg
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - F. P. Heßberger
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - D. Hinde
- Department of Nuclear Physics, Australian National University, Canberra, ACT, Australia
| | - A. Hübner
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - E. Jäger
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - D. Judson
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - J. Khuyagbaatar
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - B. Kindler
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | | | - J. Konki
- Department of Physics, University of Jyväskylä, Jyväskylä, Finland
| | - J.V. Kratz
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - J. Krier
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - N. Kurz
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - M. Laatiaoui
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - B. Lommel
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | | | - M. Maiti
- Indian Institute of Technology Roorkee, Roorkee, India
| | - A.K. Mistry
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
| | - Ch. Mokry
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - Y. Nagame
- Japan Atomic Energy Agency, Tokai, Japan
| | - P. Papadakis
- Department of Physics, University of Jyväskylä, Jyväskylä, Finland
| | | | - D. Rudolph
- Department of Physics, Lund University, Lund, Sweden
| | - J. Runke
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | - T.K. Sato
- Japan Atomic Energy Agency, Tokai, Japan
| | - M. Schädel
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - P. Scharrer
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - B. Schausten
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - J. Steiner
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - P. Thörle-Pospiech
- Helmholtz-Institut Mainz, Mainz, Germany
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | | | - N. Trautmann
- Johannes Gutenberg-Universität Mainz, Mainz, Germany
| | - J. Uusitalo
- Department of Physics, University of Jyväskylä, Jyväskylä, Finland
| | - A. Ward
- Department of Physics, University of Liverpool, Liverpool, United Kingdom
| | - M. Wegrzecki
- Łukasiewicz-Instytut Mikroelektroniki I Fotoniki, Warsaw, Poland
| | - V. Yakusheva
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
- Helmholtz-Institut Mainz, Mainz, Germany
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3
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Carroll RJ, Podolyák Z, Berry T, Grawe H, Alexander T, Andreyev AN, Ansari S, Borge MJG, Brunet M, Creswell JR, Fraile LM, Fahlander C, Fynbo HOU, Gamba ER, Gelletly W, Gerst RB, Górska M, Gredley A, Greenlees PT, Harkness-Brennan LJ, Huyse M, Judge SM, Judson DS, Konki J, Kurcewicz J, Kuti I, Lalkovski S, Lazarus IH, Lică R, Lund M, Madurga M, Marginean N, Marginean R, Marroquin I, Mihai C, Mihai RE, Nácher E, Negret A, Nita C, Pascu S, Page RD, Patel Z, Perea A, Phrompao J, Piersa M, Pucknell V, Rahkila P, Rapisarda E, Regan PH, Rotaru F, Rudigier M, Shand CM, Shearman R, Stegemann S, Stora T, Sotty C, Tengblad O, Van Duppen P, Vedia V, Wadsworth R, Walker PM, Warr N, Wearing F, De Witte H. Competition between Allowed and First-Forbidden β Decay: The Case of ^{208}Hg→^{208}Tl. Phys Rev Lett 2020; 125:192501. [PMID: 33216605 DOI: 10.1103/physrevlett.125.192501] [Citation(s) in RCA: 1] [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: 07/07/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
The β decay of ^{208}Hg into the one-proton hole, one neutron-particle _{81}^{208}Tl_{127} nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. While both negative and positive parity states with spin 0 and 1 are expected within the Q_{β} window, only three negative parity states are populated directly in the β decay. The data provide a unique test of the competition between allowed Gamow-Teller and Fermi, and first-forbidden β decays, essential for the understanding of the nucleosynthesis of heavy nuclei in the rapid neutron capture process. Furthermore, the observation of the parity changing 0^{+}→0^{-}β decay where the daughter state is core excited is unique, and can provide information on mesonic corrections of effective operators.
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Affiliation(s)
- R J Carroll
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Berry
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - H Grawe
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Alexander
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A N Andreyev
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan
| | - S Ansari
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M J G Borge
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - M Brunet
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - J R Creswell
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L M Fraile
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - C Fahlander
- Department of Physics, Lund University, S-22100 Lund, Sweden
| | - H O U Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - E R Gamba
- University of Brighton, Brighton BN2 4GJ, United Kingdom
| | - W Gelletly
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R-B Gerst
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M Górska
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - A Gredley
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - P T Greenlees
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - L J Harkness-Brennan
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - S M Judge
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - D S Judson
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Konki
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - J Kurcewicz
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - I Kuti
- Institute of Nuclear Research of the Hungarian Academy of Sciences, 4026 Debrecen, Hungary
| | - S Lalkovski
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - I H Lazarus
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - R Lică
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Lund
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - M Madurga
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - N Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - I Marroquin
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - C Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R E Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - E Nácher
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - A Negret
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - C Nita
- University of Brighton, Brighton BN2 4GJ, United Kingdom
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - S Pascu
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R D Page
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - Z Patel
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A Perea
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - J Phrompao
- Department of Physics and Materials Science, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - M Piersa
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - V Pucknell
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - P Rahkila
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - E Rapisarda
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - P H Regan
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - F Rotaru
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Rudigier
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - C M Shand
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R Shearman
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - S Stegemann
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - T Stora
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - Ch Sotty
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - O Tengblad
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - V Vedia
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - R Wadsworth
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
| | - P M Walker
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - N Warr
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - F Wearing
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
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4
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Butler PA, Gaffney LP, Spagnoletti P, Konki J, Scheck M, Smith JF, Abrahams K, Bowry M, Cederkäll J, Chupp T, de Angelis G, De Witte H, Garrett PE, Goldkuhle A, Henrich C, Illana A, Johnston K, Joss DT, Keatings JM, Kelly NA, Komorowska M, Kröll T, Lozano M, Singh BSN, O'Donnell D, Ojala J, Page RD, Pedersen LG, Raison C, Reiter P, Rodriguez JA, Rosiak D, Rothe S, Shneidman TM, Siebeck B, Seidlitz M, Sinclair J, Stryjczyk M, Van Duppen P, Vinals S, Virtanen V, Warr N, Wrzosek-Lipska K, Zielinska M. Publisher Correction: The observation of vibrating pear-shapes in radon nuclei. Nat Commun 2020; 11:5185. [PMID: 33037232 PMCID: PMC7547707 DOI: 10.1038/s41467-020-19081-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- P A Butler
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.
| | - L P Gaffney
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.,CERN, Geneva, 23 CH-1211, Switzerland
| | - P Spagnoletti
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Konki
- CERN, Geneva, 23 CH-1211, Switzerland
| | - M Scheck
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J F Smith
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - K Abrahams
- Department of Physics & Astronomy, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - M Bowry
- TRIUMF, Vancouver, V6T 2A3, BC, Canada
| | - J Cederkäll
- Physics Department, Lund University, Box 118, Lund, SE-221 00, Sweden
| | - T Chupp
- Department of Physics, University of Michigan, Ann Arbor, 48104 MI, USA
| | - G de Angelis
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020 PD, Italy
| | - H De Witte
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P E Garrett
- Department of Physics, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - A Goldkuhle
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - C Henrich
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - A Illana
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020 PD, Italy
| | | | - D T Joss
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - J M Keatings
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - N A Kelly
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Komorowska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - T Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - M Lozano
- CERN, Geneva, 23 CH-1211, Switzerland
| | - B S Nara Singh
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - D O'Donnell
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Ojala
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - R D Page
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - L G Pedersen
- Department of Physics, University of Oslo, P.O. Box 1048, Oslo, N-0316, Norway
| | - C Raison
- Department of Physics, University of York, York, YO10 5DD, UK
| | - P Reiter
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | | | - D Rosiak
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - S Rothe
- CERN, Geneva, 23 CH-1211, Switzerland
| | | | - B Siebeck
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - M Seidlitz
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - J Sinclair
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Stryjczyk
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P Van Duppen
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - S Vinals
- Consejo Superior De Investigaciones Científicas, Madrid, S 28040, Spain
| | - V Virtanen
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - N Warr
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - K Wrzosek-Lipska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - M Zielinska
- IRFU CEA, Université Paris-Saclay, Gif-sur-Yvette, F-91191, France
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Butler PA, Gaffney LP, Spagnoletti P, Konki J, Scheck M, Smith JF, Abrahams K, Bowry M, Cederkäll J, Chupp T, de Angelis G, De Witte H, Garrett PE, Goldkuhle A, Henrich C, Illana A, Johnston K, Joss DT, Keatings JM, Kelly NA, Komorowska M, Kröll T, Lozano M, Singh BSN, O'Donnell D, Ojala J, Page RD, Pedersen LG, Raison C, Reiter P, Rodriguez JA, Rosiak D, Rothe S, Shneidman TM, Siebeck B, Seidlitz M, Sinclair J, Stryjczyk M, Van Duppen P, Vinals S, Virtanen V, Warr N, Wrzosek-Lipska K, Zielinska M. Addendum: The observation of vibrating pear-shapes in radon nuclei. Nat Commun 2020; 11:3560. [PMID: 32661232 PMCID: PMC7359340 DOI: 10.1038/s41467-020-17309-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- P A Butler
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.
| | - L P Gaffney
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.,CERN, Geneva, 23 CH-1211, Switzerland
| | - P Spagnoletti
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Konki
- CERN, Geneva, 23 CH-1211, Switzerland
| | - M Scheck
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J F Smith
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - K Abrahams
- Department of Physics & Astronomy, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - M Bowry
- TRIUMF, Vancouver, V6T 2A3, BC, Canada
| | - J Cederkäll
- Physics Department, Lund University, Box 118, Lund, SE-221 00, Sweden
| | - T Chupp
- Department of Physics, University of Michigan, Ann Arbor, 48104, MI, USA
| | - G de Angelis
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020 PD, Italy
| | - H De Witte
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P E Garrett
- Department of Physics, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - A Goldkuhle
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - C Henrich
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - A Illana
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020 PD, Italy
| | | | - D T Joss
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - J M Keatings
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - N A Kelly
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Komorowska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - T Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - M Lozano
- CERN, Geneva, 23 CH-1211, Switzerland
| | - B S Nara Singh
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - D O'Donnell
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Ojala
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - R D Page
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - L G Pedersen
- Department of Physics, University of Oslo, P.O. Box 1048, Oslo, N-0316, Norway
| | - C Raison
- Department of Physics, University of York, York, YO10 5DD, UK
| | - P Reiter
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | | | - D Rosiak
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - S Rothe
- CERN, Geneva, 23 CH-1211, Switzerland
| | | | - B Siebeck
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - M Seidlitz
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - J Sinclair
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Stryjczyk
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P Van Duppen
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - S Vinals
- Consejo Superior De Investigaciones Científicas, Madrid, S 28040, Spain
| | - V Virtanen
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - N Warr
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - K Wrzosek-Lipska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - M Zielinska
- IRFU CEA, Université Paris-Saclay, Gif-sur-Yvette, F-91191, France
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6
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Tang TL, Kay BP, Hoffman CR, Schiffer JP, Sharp DK, Gaffney LP, Freeman SJ, Mumpower MR, Arokiaraj A, Baader EF, Butler PA, Catford WN, de Angelis G, Flavigny F, Gott MD, Gregor ET, Konki J, Labiche M, Lazarus IH, MacGregor PT, Martel I, Page RD, Podolyák Z, Poleshchuk O, Raabe R, Recchia F, Smith JF, Szwec SV, Yang J. First Exploration of Neutron Shell Structure below Lead and beyond N=126. Phys Rev Lett 2020; 124:062502. [PMID: 32109128 DOI: 10.1103/physrevlett.124.062502] [Citation(s) in RCA: 1] [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: 11/06/2019] [Revised: 12/12/2019] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical r process in producing nuclei heavier than A∼190. Despite their importance, the structure and properties of these nuclei remain experimentally untested as they are difficult to produce in nuclear reactions with stable beams. In a first exploration of the shell structure of this region, neutron excitations in ^{207}Hg have been probed using the neutron-adding (d,p) reaction in inverse kinematics. The radioactive beam of ^{206}Hg was delivered to the new ISOLDE Solenoidal Spectrometer at an energy above the Coulomb barrier. The spectroscopy of ^{207}Hg marks a first step in improving our understanding of the relevant structural properties of nuclei involved in a key part of the path of the r process.
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Affiliation(s)
- T L Tang
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B P Kay
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C R Hoffman
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J P Schiffer
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D K Sharp
- Department of Physics, University of Manchester, M13 9PL Manchester, United Kingdom
| | | | - S J Freeman
- Department of Physics, University of Manchester, M13 9PL Manchester, United Kingdom
| | - M R Mumpower
- Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Center for Theoretical Astrophysics, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A Arokiaraj
- KU Leuven, Intituut voor Kern-en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | | | - P A Butler
- Oliver Lodge Laboratory, University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - W N Catford
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - G de Angelis
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - F Flavigny
- Institut de Physique Nucléaire, CNRS-IN2P3, Université Paris-Sud, Université Paris-Saclay, 91406 Orsay, France
- LPC Caen, Normandie Université, ENSICAEN, UNICAEN, CNRS/IN2P3, 14000 Caen, France
| | - M D Gott
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - E T Gregor
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - J Konki
- CERN, CH-1211 Geneva, Switzerland
| | - M Labiche
- Nuclear Physics Group, UKRI-STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - I H Lazarus
- Nuclear Physics Group, UKRI-STFC Daresbury Laboratory, Daresbury, Warrington WA4 4AD, United Kingdom
| | - P T MacGregor
- Department of Physics, University of Manchester, M13 9PL Manchester, United Kingdom
| | - I Martel
- Oliver Lodge Laboratory, University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - R D Page
- Oliver Lodge Laboratory, University of Liverpool, L69 7ZE Liverpool, United Kingdom
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - O Poleshchuk
- KU Leuven, Intituut voor Kern-en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - R Raabe
- KU Leuven, Intituut voor Kern-en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - F Recchia
- Dipartimento di Fisica e Astronomia, Universit degli Studi di Padova, I-35131 Padova, Italy
- INFN, Sezione di Padova, I-35131 Padova, Italy
| | - J F Smith
- SUPA, School of Computing, Engineering, and Physical Sciences, University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - S V Szwec
- Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, FIN-00014 Helsinki, Finland
| | - J Yang
- KU Leuven, Intituut voor Kern-en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
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7
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Butler PA, Gaffney LP, Spagnoletti P, Abrahams K, Bowry M, Cederkäll J, de Angelis G, De Witte H, Garrett PE, Goldkuhle A, Henrich C, Illana A, Johnston K, Joss DT, Keatings JM, Kelly NA, Komorowska M, Konki J, Kröll T, Lozano M, Nara Singh BS, O'Donnell D, Ojala J, Page RD, Pedersen LG, Raison C, Reiter P, Rodriguez JA, Rosiak D, Rothe S, Scheck M, Seidlitz M, Shneidman TM, Siebeck B, Sinclair J, Smith JF, Stryjczyk M, Van Duppen P, Vinals S, Virtanen V, Warr N, Wrzosek-Lipska K, Zielińska M. Evolution of Octupole Deformation in Radium Nuclei from Coulomb Excitation of Radioactive ^{222}Ra and ^{228}Ra Beams. Phys Rev Lett 2020; 124:042503. [PMID: 32058764 DOI: 10.1103/physrevlett.124.042503] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Indexed: 06/10/2023]
Abstract
There is sparse direct experimental evidence that atomic nuclei can exhibit stable "pear" shapes arising from strong octupole correlations. In order to investigate the nature of octupole collectivity in radium isotopes, electric octupole (E3) matrix elements have been determined for transitions in ^{222,228}Ra nuclei using the method of sub-barrier, multistep Coulomb excitation. Beams of the radioactive radium isotopes were provided by the HIE-ISOLDE facility at CERN. The observed pattern of E3 matrix elements for different nuclear transitions is explained by describing ^{222}Ra as pear shaped with stable octupole deformation, while ^{228}Ra behaves like an octupole vibrator.
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Affiliation(s)
- P A Butler
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L P Gaffney
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
- ISOLDE, CERN, 1211 Geneva 23, Switzerland
| | - P Spagnoletti
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - K Abrahams
- University of the Western Cape, Private Bag X17, Bellville 7535, South Africa
| | - M Bowry
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
- TRIUMF, Vancouver V6T 2A3 BC, Canada
| | - J Cederkäll
- Lund University, Box 118, Lund SE-221 00, Sweden
| | - G de Angelis
- INFN Laboratori Nazionali di Legnaro, Legnaro 35020 PD, Italy
| | | | - P E Garrett
- University of Guelph, Guelph N1G 2W1 Ontario, Canada
| | - A Goldkuhle
- University of Cologne, Cologne 50937, Germany
| | - C Henrich
- Technische Universität Darmstadt, Darmstadt 64289, Germany
| | - A Illana
- INFN Laboratori Nazionali di Legnaro, Legnaro 35020 PD, Italy
| | - K Johnston
- ISOLDE, CERN, 1211 Geneva 23, Switzerland
| | - D T Joss
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J M Keatings
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - N A Kelly
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - M Komorowska
- Heavy Ion Laboratory, University of Warsaw, Warsaw PL-02-093, Poland
| | - J Konki
- ISOLDE, CERN, 1211 Geneva 23, Switzerland
| | - T Kröll
- Technische Universität Darmstadt, Darmstadt 64289, Germany
| | - M Lozano
- ISOLDE, CERN, 1211 Geneva 23, Switzerland
| | - B S Nara Singh
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - D O'Donnell
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - J Ojala
- University of Jyvaskyla, P.O. Box 35, Jyvaskyla FIN-40014, Finland
- Helsinki Institute of Physics, P.O. Box 64, Helsinki FIN-00014, Finland
| | - R D Page
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L G Pedersen
- University of Oslo, P.O. Box 1048, Oslo N-0316, Norway
| | - C Raison
- University of York, York YO10 5DD, United Kingdom
| | - P Reiter
- University of Cologne, Cologne 50937, Germany
| | | | - D Rosiak
- University of Cologne, Cologne 50937, Germany
| | - S Rothe
- ISOLDE, CERN, 1211 Geneva 23, Switzerland
| | - M Scheck
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - M Seidlitz
- University of Cologne, Cologne 50937, Germany
| | - T M Shneidman
- Joint Institute for Nuclear Research, RU-141980 Dubna, Russian Federation
| | - B Siebeck
- University of Cologne, Cologne 50937, Germany
| | - J Sinclair
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | - J F Smith
- University of the West of Scotland, Paisley PA1 2BE, United Kingdom
| | | | | | - S Vinals
- Consejo Superior De Investigaciones Científicas, Madrid S28040, Spain
| | - V Virtanen
- University of Jyvaskyla, P.O. Box 35, Jyvaskyla FIN-40014, Finland
- Helsinki Institute of Physics, P.O. Box 64, Helsinki FIN-00014, Finland
| | - N Warr
- University of Cologne, Cologne 50937, Germany
| | - K Wrzosek-Lipska
- Heavy Ion Laboratory, University of Warsaw, Warsaw PL-02-093, Poland
| | - M Zielińska
- IRFU CEA, Université Paris-Saclay, Gif-sur-Yvette F-91191, France
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8
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Butler PA, Gaffney LP, Spagnoletti P, Konki J, Scheck M, Smith JF, Abrahams K, Bowry M, Cederkäll J, Chupp T, de Angelis G, De Witte H, Garrett PE, Goldkuhle A, Henrich C, Illana A, Johnston K, Joss DT, Keatings JM, Kelly NA, Komorowska M, Kröll T, Lozano M, Nara Singh BS, O'Donnell D, Ojala J, Page RD, Pedersen LG, Raison C, Reiter P, Rodriguez JA, Rosiak D, Rothe S, Shneidman TM, Siebeck B, Seidlitz M, Sinclair J, Stryjczyk M, Van Duppen P, Vinals S, Virtanen V, Warr N, Wrzosek-Lipska K, Zielinska M. The observation of vibrating pear-shapes in radon nuclei. Nat Commun 2019; 10:2473. [PMID: 31171788 PMCID: PMC6554308 DOI: 10.1038/s41467-019-10494-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Accepted: 05/15/2019] [Indexed: 11/09/2022] Open
Abstract
There is a large body of evidence that atomic nuclei can undergo octupole distortion and assume the shape of a pear. This phenomenon is important for measurements of electric-dipole moments of atoms, which would indicate CP violation and hence probe physics beyond the Standard Model of particle physics. Isotopes of both radon and radium have been identified as candidates for such measurements. Here, we observed the low-lying quantum states in 224Rn and 226Rn by accelerating beams of these radioactive nuclei. We show that radon isotopes undergo octupole vibrations but do not possess static pear-shapes in their ground states. We conclude that radon atoms provide less favourable conditions for the enhancement of a measurable atomic electric-dipole moment.
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Affiliation(s)
- P A Butler
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.
| | - L P Gaffney
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK.,CERN, Geneva 23, CH-1211, Switzerland
| | - P Spagnoletti
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Konki
- CERN, Geneva 23, CH-1211, Switzerland
| | - M Scheck
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J F Smith
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - K Abrahams
- Department of Physics & Astronomy, University of the Western Cape, Private Bag X17, Bellville, 7535, South Africa
| | - M Bowry
- TRIUMF, Vancouver, V6T 2A3, BC, Canada
| | - J Cederkäll
- Physics Department, Lund University, Box 118, Lund, SE-221 00, Sweden
| | - T Chupp
- Department of Physics, University of Michigan, Ann Arbor, 48104, MI, USA
| | - G de Angelis
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020, PD, Italy
| | - H De Witte
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P E Garrett
- Department of Physics, University of Guelph, Guelph, N1G 2W1, Ontario, Canada
| | - A Goldkuhle
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - C Henrich
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - A Illana
- INFN Laboratori Nazionali di Legnaro, Legnaro, 35020, PD, Italy
| | | | - D T Joss
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - J M Keatings
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - N A Kelly
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Komorowska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - T Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, 64289, Germany
| | - M Lozano
- CERN, Geneva 23, CH-1211, Switzerland
| | - B S Nara Singh
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - D O'Donnell
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - J Ojala
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - R D Page
- Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, UK
| | - L G Pedersen
- Department of Physics, University of Oslo, P.O. Box 1048, Oslo, N-0316, Norway
| | - C Raison
- Department of Physics, University of York, York, YO10 5DD, UK
| | - P Reiter
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | | | - D Rosiak
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - S Rothe
- CERN, Geneva 23, CH-1211, Switzerland
| | | | - B Siebeck
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - M Seidlitz
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - J Sinclair
- School of Computing, Engineering and Physical Sciences, University of the West of Scotland, Paisley, PA1 2BE, UK
| | - M Stryjczyk
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - P Van Duppen
- Instituut voor Kern- en Stralingsfysica, KU Leuven, Leuven, B-3001, Belgium
| | - S Vinals
- Consejo Superior De Investigaciones Científicas, Madrid, S 28040, Spain
| | - V Virtanen
- Department of Physics, University of Jyvaskyla, P.O. Box 35, Jyvaskyla, FIN-40014, Finland.,Helsinki Institute of Physics, P.O. Box 64, Helsinki, FIN-00014, Finland
| | - N Warr
- Institute for Nuclear Physics, University of Cologne, Cologne, 50937, Germany
| | - K Wrzosek-Lipska
- Heavy Ion Laboratory, University of Warsaw, Warsaw, PL-02-093, Poland
| | - M Zielinska
- IRFU CEA, Université Paris-Saclay, Gif-sur-Yvette, F-91191, France
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9
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Kirsebom OS, Tengblad O, Lica R, Munch M, Riisager K, Fynbo HOU, Borge MJG, Madurga M, Marroquin I, Andreyev AN, Berry TA, Christensen ER, Fernández PD, Doherty DT, Van Duppen P, Fraile LM, Gallardo MC, Greenlees PT, Harkness-Brennan LJ, Hubbard N, Huyse M, Jensen JH, Johansson H, Jonson B, Judson DS, Konki J, Lazarus I, Lund MV, Marginean N, Marginean R, Perea A, Mihai C, Negret A, Page RD, Pucknell V, Rahkila P, Sorlin O, Sotty C, Swartz JA, Sørensen HB, Törnqvist H, Vedia V, Warr N, De Witte H. First Accurate Normalization of the β-delayed α Decay of ^{16}N and Implications for the ^{12}C(α,γ)^{16}O Astrophysical Reaction Rate. Phys Rev Lett 2018; 121:142701. [PMID: 30339438 DOI: 10.1103/physrevlett.121.142701] [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: 04/09/2018] [Revised: 06/22/2018] [Indexed: 06/08/2023]
Abstract
The ^{12}C(α,γ)^{16}O reaction plays a central role in astrophysics, but its cross section at energies relevant for astrophysical applications is only poorly constrained by laboratory data. The reduced α width, γ_{11}, of the bound 1^{-} level in ^{16}O is particularly important to determine the cross section. The magnitude of γ_{11} is determined via sub-Coulomb α-transfer reactions or the β-delayed α decay of ^{16}N, but the latter approach is presently hampered by the lack of sufficiently precise data on the β-decay branching ratios. Here we report improved branching ratios for the bound 1^{-} level [b_{β,11}=(5.02±0.10)×10^{-2}] and for β-delayed α emission [b_{βα}=(1.59±0.06)×10^{-5}]. Our value for b_{βα} is 33% larger than previously held, leading to a substantial increase in γ_{11}. Our revised value for γ_{11} is in good agreement with the value obtained in α-transfer studies and the weighted average of the two gives a robust and precise determination of γ_{11}, which provides significantly improved constraints on the ^{12}C(α,γ) cross section in the energy range relevant to hydrostatic He burning.
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Affiliation(s)
- O S Kirsebom
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - O Tengblad
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - R Lica
- CERN, CH-1211 Geneva 23, Switzerland
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - M Munch
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - K Riisager
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - H O U Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - M J G Borge
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
- CERN, CH-1211 Geneva 23, Switzerland
| | - M Madurga
- CERN, CH-1211 Geneva 23, Switzerland
| | - I Marroquin
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - A N Andreyev
- Department of Physics, University of York, York YO10 5DD, United Kingdom
- Advanced Science Research Centre (ASRC), Japan Atomic Energy Agency (JAEA), Tokai-mura, Ibaraki 319-1195, Japan
| | - T A Berry
- Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom
| | - E R Christensen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - P Díaz Fernández
- Department of Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden
| | - D T Doherty
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
| | - L M Fraile
- Grupo de Física Nuclear, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - M C Gallardo
- Grupo de Física Nuclear, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - P T Greenlees
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - L J Harkness-Brennan
- Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - N Hubbard
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
- Department of Physics, University of York, York YO10 5DD, United Kingdom
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
| | - J H Jensen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - H Johansson
- Department of Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden
| | - B Jonson
- Department of Physics, Chalmers University of Technology, S-41296 Göteborg, Sweden
| | - D S Judson
- Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Konki
- CERN, CH-1211 Geneva 23, Switzerland
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - I Lazarus
- STFC Daresbury, Daresbury, Warrington WA4 4AD, United Kingdom
| | - M V Lund
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - N Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - R Marginean
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - A Perea
- Instituto de Estructura de la Materia, CSIC, E-28006 Madrid, Spain
| | - C Mihai
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - A Negret
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - R D Page
- Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - V Pucknell
- STFC Daresbury, Daresbury, Warrington WA4 4AD, United Kingdom
| | - P Rahkila
- University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - O Sorlin
- CERN, CH-1211 Geneva 23, Switzerland
- GANIL, CEA/DSM-CNRS/IN2P3, Bvd Henri Becquerel, 14076 Caen, France
| | - C Sotty
- Horia Hulubei National Institute for Physics and Nuclear Engineering (IFIN-HH), RO-077125 Bucharest-Magurele, Romania
| | - J A Swartz
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - H B Sørensen
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus C, Denmark
| | - H Törnqvist
- Institut für Kernphysik, Technische Universität Darmstadt, Darmstadt, Germany
- GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany
| | - V Vedia
- Grupo de Física Nuclear, Universidad Complutense de Madrid, E-28040 Madrid, Spain
| | - N Warr
- Institut für Kernphysik, Universität zu Köln, D-50937 Köln, Germany
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
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10
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Sotty C, Zielińska M, Georgiev G, Balabanski DL, Stuchbery AE, Blazhev A, Bree N, Chevrier R, Das Gupta S, Daugas JM, Davinson T, De Witte H, Diriken J, Gaffney LP, Geibel K, Hadyńska-Klek K, Kondev FG, Konki J, Kröll T, Morel P, Napiorkowski P, Pakarinen J, Reiter P, Scheck M, Seidlitz M, Siebeck B, Simpson G, Törnqvist H, Warr N, Wenander F. Publisher's Note: (37)(97)Rb(60): The Cornerstone of the Region of Deformation around A∼100 [Phys. Rev. Lett. 115, 172501 (2015)]. Phys Rev Lett 2015; 115:209902. [PMID: 26613483 DOI: 10.1103/physrevlett.115.209902] [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: 11/03/2015] [Indexed: 06/05/2023]
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11
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Sotty C, Zielińska M, Georgiev G, Balabanski DL, Stuchbery AE, Blazhev A, Bree N, Chevrier R, Das Gupta S, Daugas JM, Davinson T, De Witte H, Diriken J, Gaffney LP, Geibel K, Hadyńska-Klȩk K, Kondev FG, Konki J, Kröll T, Morel P, Napiorkowski P, Pakarinen J, Reiter P, Scheck M, Seidlitz M, Siebeck B, Simpson G, Törnqvist H, Warr N, Wenander F. (97)(37)Rb(60): The Cornerstone of the Region of Deformation around A ∼ 100 [corrected]. Phys Rev Lett 2015; 115:172501. [PMID: 26551106 DOI: 10.1103/physrevlett.115.172501] [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: 08/03/2015] [Indexed: 06/05/2023]
Abstract
Excited states of the neutron-rich nuclei (97,99)Rb were populated for the first time using the multistep Coulomb excitation of radioactive beams. Comparisons of the results with particle-rotor model calculations provide clear identification for the ground-state rotational band of (97)Rb as being built on the πg(9/2) [431] 3/2(+) Nilsson-model configuration. The ground-state excitation spectra of the Rb isotopes show a marked distinction between single-particle-like structures below N=60 and rotational bands above. The present study defines the limits of the deformed region around A∼100 and indicates that the deformation of (97)Rb is essentially the same as that observed well inside the deformed region. It further highlights the power of the Coulomb-excitation technique for obtaining spectroscopic information far from stability. The (99)Rb case demonstrates the challenges of studies with very short-lived postaccelerated radioactive beams.
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Affiliation(s)
- C Sotty
- CSNSM, CNRS/IN2P3, Université Paris-Sud, UMR8609, F-91405 ORSAY-Campus, France
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
| | - M Zielińska
- Heavy Ion Laboratory, University of Warsaw, 02-093 Warsaw, Poland
- IRFU/SPhN, CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - G Georgiev
- CSNSM, CNRS/IN2P3, Université Paris-Sud, UMR8609, F-91405 ORSAY-Campus, France
| | - D L Balabanski
- ELI-NP, IFIN-HH, 30 Reactorului Street, 077125 Bucharest, Mǎgurele, Romania
| | - A E Stuchbery
- Department of Nuclear Physics, RSPE, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - A Blazhev
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - N Bree
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
| | - R Chevrier
- CEA, DAM, DIF, F-91297 Arpajon cedex, France
| | - S Das Gupta
- Dipartimento di Fisica, Universitá di Camerino, I-62032 Camerino, Italy and Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, I-06123 Perugia, Italy
| | - J M Daugas
- CEA, DAM, DIF, F-91297 Arpajon cedex, France
| | - T Davinson
- Department of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
| | - J Diriken
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
- Belgian Nuclear Research Centre SCK·CEN, Boeretang 200, B-2400 Mol, Belgium
| | - L P Gaffney
- KU Leuven, Instituut voor Kern- en Stralingsfysica, 3001 Leuven, Belgium
- Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - K Geibel
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - K Hadyńska-Klȩk
- Heavy Ion Laboratory, University of Warsaw, 02-093 Warsaw, Poland
| | - F G Kondev
- Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Konki
- ISOLDE, CERN, CH-1211 Geneva 23, Switzerland
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 University of Jyväskylä, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - T Kröll
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - P Morel
- CEA, DAM, DIF, F-91297 Arpajon cedex, France
| | - P Napiorkowski
- Heavy Ion Laboratory, University of Warsaw, 02-093 Warsaw, Poland
| | - J Pakarinen
- ISOLDE, CERN, CH-1211 Geneva 23, Switzerland
- Department of Physics, University of Jyväskylä, P.O. Box 35, FI-40014 University of Jyväskylä, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - P Reiter
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - M Scheck
- Institut für Kernphysik, Technische Universität Darmstadt, D-64289 Darmstadt, Germany
| | - M Seidlitz
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - B Siebeck
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - G Simpson
- LPSC, CNRS/IN2P3, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, INPG, F-38026 Grenoble Cedex, France
| | - H Törnqvist
- ISOLDE, CERN, CH-1211 Geneva 23, Switzerland
| | - N Warr
- Institute for Nuclear Physics, University of Cologne, Zülpicher Straße 77, D-50937 Cologne, Germany
| | - F Wenander
- ISOLDE, CERN, CH-1211 Geneva 23, Switzerland
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12
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David HM, Chen J, Seweryniak D, Kondev FG, Gates JM, Gregorich KE, Ahmad I, Albers M, Alcorta M, Back BB, Baartman B, Bertone PF, Bernstein LA, Campbell CM, Carpenter MP, Chiara CJ, Clark RM, Cromaz M, Doherty DT, Dracoulis GD, Esker NE, Fallon P, Gothe OR, Greene JP, Greenlees PT, Hartley DJ, Hauschild K, Hoffman CR, Hota SS, Janssens RVF, Khoo TL, Konki J, Kwarsick JT, Lauritsen T, Macchiavelli AO, Mudder PR, Nair C, Qiu Y, Rissanen J, Rogers AM, Ruotsalainen P, Savard G, Stolze S, Wiens A, Zhu S. Publisher's Note: Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in (254)Rf [Phys. Rev. Lett. 115, 132502 (2015)]. Phys Rev Lett 2015; 115:169902. [PMID: 26550909 DOI: 10.1103/physrevlett.115.169902] [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: 10/07/2015] [Indexed: 06/05/2023]
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13
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David HM, Chen J, Seweryniak D, Kondev FG, Gates JM, Gregorich KE, Ahmad I, Albers M, Alcorta M, Back BB, Baartman B, Bertone PF, Bernstein LA, Campbell CM, Carpenter MP, Chiara CJ, Clark RM, Cromaz M, Doherty DT, Dracoulis GD, Esker NE, Fallon P, Gothe OR, Greene JP, Greenlees PT, Hartley DJ, Hauschild K, Hoffman CR, Hota SS, Janssens RVF, Khoo TL, Konki J, Kwarsick JT, Lauritsen T, Macchiavelli AO, Mudder PR, Nair C, Qiu Y, Rissanen J, Rogers AM, Ruotsalainen P, Savard G, Stolze S, Wiens A, Zhu S. Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in ^{254}Rf. Phys Rev Lett 2015; 115:132502. [PMID: 26451549 DOI: 10.1103/physrevlett.115.132502] [Citation(s) in RCA: 6] [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: 06/24/2015] [Indexed: 06/05/2023]
Abstract
Two isomers decaying by electromagnetic transitions with half-lives of 4.7(1.1) and 247(73) μs have been discovered in the heavy ^{254}Rf nucleus. The observation of the shorter-lived isomer was made possible by a novel application of a digital data acquisition system. The isomers were interpreted as the K^{π}=8^{-}, ν^{2}(7/2^{+}[624],9/2^{-}[734]) two-quasineutron and the K^{π}=16^{+}, 8^{-}ν^{2}(7/2^{+}[624],9/2^{-}[734])⊗8^{-}π^{2}(7/2^{-}[514],9/2^{+}[624]) four-quasiparticle configurations, respectively. Surprisingly, the lifetime of the two-quasiparticle isomer is more than 4 orders of magnitude shorter than what has been observed for analogous isomers in the lighter N=150 isotones. The four-quasiparticle isomer is longer lived than the ^{254}Rf ground state that decays exclusively by spontaneous fission with a half-life of 23.2(1.1) μs. The absence of sizable fission branches from either of the isomers implies unprecedented fission hindrance relative to the ground state.
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Affiliation(s)
- H M David
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Chen
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Seweryniak
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - F G Kondev
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J M Gates
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K E Gregorich
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - I Ahmad
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Albers
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Alcorta
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B B Back
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - B Baartman
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - P F Bertone
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - L A Bernstein
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - C M Campbell
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M P Carpenter
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - C J Chiara
- Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, USA
| | - R M Clark
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - M Cromaz
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - D T Doherty
- School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
| | - G D Dracoulis
- Department of Nuclear Physics, R.S.P.E., Australian National University, Canberra A.C.T. 2601, Australia
| | - N E Esker
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - P Fallon
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - O R Gothe
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J P Greene
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P T Greenlees
- Department of Physics, University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - D J Hartley
- United States Naval Academy, Annapolis, Maryland 21402, USA
| | - K Hauschild
- CSNSM, IN2P3-CNRS, F-91405 Orsay Campus, France
| | - C R Hoffman
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S S Hota
- Department of Physics, University of Massachusetts, Lowell, Massachusetts 01854, USA
| | - R V F Janssens
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - T L Khoo
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J Konki
- Department of Physics, University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - J T Kwarsick
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - T Lauritsen
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - A O Macchiavelli
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - P R Mudder
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C Nair
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Y Qiu
- Department of Physics, University of Massachusetts, Lowell, Massachusetts 01854, USA
| | - J Rissanen
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A M Rogers
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - P Ruotsalainen
- Department of Physics, University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - G Savard
- Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Stolze
- Department of Physics, University of Jyväskylä, FIN-40014 Jyväskylä, Finland
| | - A Wiens
- Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - S Zhu
- Argonne National Laboratory, Argonne, Illinois 60439, USA
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14
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Scheck M, Gaffney LP, Butler PA, Hayes AB, Wenander F, Albers M, Bastin B, Bauer C, Blazhev A, Boenig S, Bree N, Cederkall J, Chupp T, Cline D, Cocolios TE, Davinson T, De Witte H, Diriken J, Grahn T, Herzan A, Huyse M, Jenkins DG, Joss DT, Kesteloot N, Konki J, Kowalczyk M, Kroell T, Kwan E, Lutter R, Moschner K, Napiorkowski P, Pakarinen J, Pfeiffer M, Radeck D, Reiter P, Reynders K, Rigby SV, Robledo LM, Rudigier M, Sambi S, Seidlitz M, Siebeck B, Stora T, Thoele P, Van Duppen P, Vermeulen MJ, von Schmid M, Voulot D, Warr N, Wimmer K, Wrzosek-Lipska K, Wu CY, Zielinska M. Do nuclei go pear-shaped? Coulomb excitation of 220Rn and 224Ra at REX-ISOLDE (CERN). EPJ Web of Conferences 2015. [DOI: 10.1051/epjconf/20159301038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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15
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Konki J, Papadakis P, Pakarinen J, Butler P, Davies P, Greenlees P, Herzberg R, Huyse M, Jenkins D, Julin R, O’Neill G, Page R, Rahkila P, Ranttila K, Thornhill J, Van Duppen P. Combined in-beam gamma-ray and conversion electron spectroscopy with radioactive ion beams. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136301019] [Citation(s) in RCA: 6] [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: 11/14/2022] Open
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Grahn T, Albers M, Auranen K, Bauer C, Bernards C, Blazhev A, Butler P, Bönig S, Damyanova A, De Coster T, De Witte H, Elseviers J, Gaffney LP, Huyse M, Herzáň A, Jakobsson U, Kesteloot N, Konki J, Kröll T, Lewandowski L, Mosher K, Pakarinen J, Peura P, Pfeiffer M, Radeck D, Rahkila P, Rapisarda E, Reiter P, Reynders K, Rudiger M, Salsac MD, Sambi S, Scheck M, Siebeck B, Seidlitz M, Steinbach T, Stolze S, Thoele P, Thürauf M, Warr N, Van Duppen P, Venhart M, Vermeulen MJ, Werner V, Veselsky M, Vogt A, Wenander F, Wrzosek-Lipska K, Zielinska M. Coulomb excitation of re-accelerated208Rn and206Po beams. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20136301009] [Citation(s) in RCA: 5] [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: 11/14/2022] Open
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Albers M, Warr N, Nomura K, Blazhev A, Jolie J, Mücher D, Bastin B, Bauer C, Bernards C, Bettermann L, Bildstein V, Butterworth J, Cappellazzo M, Cederkäll J, Cline D, Darby I, Das Gupta S, Daugas JM, Davinson T, De Witte H, Diriken J, Filipescu D, Fiori E, Fransen C, Gaffney LP, Georgiev G, Gernhäuser R, Hackstein M, Heinze S, Hess H, Huyse M, Jenkins D, Konki J, Kowalczyk M, Kröll T, Krücken R, Litzinger J, Lutter R, Marginean N, Mihai C, Moschner K, Napiorkowski P, Singh BSN, Nowak K, Otsuka T, Pakarinen J, Pfeiffer M, Radeck D, Reiter P, Rigby S, Robledo LM, Rodríguez-Guzmán R, Rudigier M, Sarriguren P, Scheck M, Seidlitz M, Siebeck B, Simpson G, Thöle P, Thomas T, Van de Walle J, Van Duppen P, Vermeulen M, Voulot D, Wadsworth R, Wenander F, Wimmer K, Zell KO, Zielinska M. Evidence for a smooth onset of deformation in the neutron-rich Kr isotopes. Phys Rev Lett 2012; 108:062701. [PMID: 22401060 DOI: 10.1103/physrevlett.108.062701] [Citation(s) in RCA: 5] [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: 11/10/2011] [Indexed: 05/31/2023]
Abstract
The neutron-rich nuclei 94,96Kr were studied via projectile Coulomb excitation at the REX-ISOLDE facility at CERN. Level energies of the first excited 2(+) states and their absolute E2 transition strengths to the ground state are determined and discussed in the context of the E(2(1)(+)) and B(E2;2(1)(+)→0(1)(+)) systematics of the krypton chain. Contrary to previously published results no sudden onset of deformation is observed. This experimental result is supported by a new proton-neutron interacting boson model calculation based on the constrained Hartree-Fock-Bogoliubov approach using the microscopic Gogny-D1M energy density functional.
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Affiliation(s)
- M Albers
- Institut für Kernphysik, Universität zu Köln, Köln, Germany.
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