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Spectroscopic Quadrupole Moments in {96,98}Sr: Evidence for Shape Coexistence in Neutron-Rich Strontium Isotopes at N=60.
Clément, E; Zielinska, M; Görgen, A; Korten, W; Péru, S; Libert, J; Goutte, H; Hilaire, S; Bastin, B; Bauer, C; Blazhev, A; Bree, N; Bruyneel, B; Butler, P A; Butterworth, J; Delahaye, P; Dijon, A; Doherty, D T; Ekström, A; Fitzpatrick, C; Fransen, C; Georgiev, G; Gernhäuser, R; Hess, H; Iwanicki, J; Jenkins, D G; Larsen, A C; Ljungvall, J; Lutter, R; Marley, P; Moschner, K; Napiorkowski, P J; Pakarinen, J; Petts, A; Reiter, P; Renstrøm, T; Seidlitz, M; Siebeck, B; Siem, S; Sotty, C; Srebrny, J; Stefanescu, I; Tveten, G M; Van de Walle, J; Vermeulen, M; Voulot, D; Warr, N; Wenander, F; Wiens, A; De Witte, H.
Affiliation
  • Clément E; GANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, France.
  • Zielinska M; PH Department, CERN 1211, Geneva 23, Switzerland.
  • Görgen A; CEA Saclay, IRFU, SPhN, 91191 Gif-sur-Yvette, France.
  • Korten W; Heavy Ion Laboratory, University of Warsaw, PL-02-093 Warsaw, Poland.
  • Péru S; Department of Physics, University of Oslo, 0316 Oslo, Norway.
  • Libert J; CEA Saclay, IRFU, SPhN, 91191 Gif-sur-Yvette, France.
  • Goutte H; CEA, DAM, DIF, F-91297 Arpajon, France.
  • Hilaire S; CEA, DAM, DIF, F-91297 Arpajon, France.
  • Bastin B; CEA Saclay, IRFU, SPhN, 91191 Gif-sur-Yvette, France.
  • Bauer C; CEA, DAM, DIF, F-91297 Arpajon, France.
  • Blazhev A; GANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, France.
  • Bree N; Institut für Kernphysik, Technische Universität Darmstadt, D-50937 Darmstadt, Germany.
  • Bruyneel B; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Butler PA; Instituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
  • Butterworth J; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Delahaye P; Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Dijon A; Department of Physics, University of York, YO10 5DD York, United Kingdom.
  • Doherty DT; GANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, France.
  • Ekström A; PH Department, CERN 1211, Geneva 23, Switzerland.
  • Fitzpatrick C; GANIL, CEA/DSM-CNRS/IN2P3, F-14076 Caen Cedex 05, France.
  • Fransen C; CEA Saclay, IRFU, SPhN, 91191 Gif-sur-Yvette, France.
  • Georgiev G; Physics Department, University of Lund, Box 118, SE-221 00 Lund, Sweden.
  • Gernhäuser R; Department of Physics, University of Manchester, M13 9PL Manchester, United Kingdom.
  • Hess H; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Iwanicki J; CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France.
  • Jenkins DG; Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85740 Garching, Germany.
  • Larsen AC; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Ljungvall J; Heavy Ion Laboratory, University of Warsaw, PL-02-093 Warsaw, Poland.
  • Lutter R; Department of Physics, University of York, YO10 5DD York, United Kingdom.
  • Marley P; Department of Physics, University of Oslo, 0316 Oslo, Norway.
  • Moschner K; CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France.
  • Napiorkowski PJ; Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85740 Garching, Germany.
  • Pakarinen J; Department of Physics, University of York, YO10 5DD York, United Kingdom.
  • Petts A; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Reiter P; Heavy Ion Laboratory, University of Warsaw, PL-02-093 Warsaw, Poland.
  • Renstrøm T; PH Department, CERN 1211, Geneva 23, Switzerland.
  • Seidlitz M; Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom.
  • Siebeck B; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Siem S; Department of Physics, University of Oslo, 0316 Oslo, Norway.
  • Sotty C; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Srebrny J; Institute of Nuclear Physics, University of Cologne, D-50397 Cologne, Germany.
  • Stefanescu I; Department of Physics, University of Oslo, 0316 Oslo, Norway.
  • Tveten GM; CSNSM, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France.
  • Van de Walle J; Heavy Ion Laboratory, University of Warsaw, PL-02-093 Warsaw, Poland.
  • Vermeulen M; Instituut voor Kern-en Stralingsfysica, KU Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium.
  • Voulot D; PH Department, CERN 1211, Geneva 23, Switzerland.
  • Warr N; Department of Physics, University of Oslo, 0316 Oslo, Norway.
  • Wenander F; PH Department, CERN 1211, Geneva 23, Switzerland.
  • Wiens A; Department of Physics, University of York, YO10 5DD York, United Kingdom.
  • De Witte H; PH Department, CERN 1211, Geneva 23, Switzerland.
Phys Rev Lett ; 116(2): 022701, 2016 Jan 15.
Article in En | MEDLINE | ID: mdl-26824536
ABSTRACT
Neutron-rich {96,98}Sr isotopes have been investigated by safe Coulomb excitation of radioactive beams at the REX-ISOLDE facility. Reduced transition probabilities and spectroscopic quadrupole moments have been extracted from the differential Coulomb excitation cross sections. These results allow, for the first time, the drawing of definite conclusions about the shape coexistence of highly deformed prolate and spherical configurations. In particular, a very small mixing between the coexisting states is observed, contrary to other mass regions where strong mixing is present. Experimental results have been compared to beyond-mean-field calculations using the Gogny D1S interaction in a five-dimensional collective Hamiltonian formalism, which reproduce the shape change at N=60.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Type: Article Affiliation country: France
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2016 Type: Article Affiliation country: France