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Title: Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg

Journal Article · · European Physical Journal. A
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  1. Univ. of Warsaw, Warsaw (Poland); KU Leuven, Leuven (Belgium)
  2. KU Leuven, Leuven (Belgium); Univ. de Strasbourg, Strasbourg (France)
  3. KU Leuven, Leuven (Belgium)
  4. Univ. of Warsaw, Warsaw (Poland); Univ. Paris-Saclay, Gif-sur-Yvette (France)
  5. Univ. of Liverpool, Liverpool (United Kingdom); KU Leuven, Leuven (Belgium); European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of the West Scotland, Paisley (United Kingdom)
  6. Univ. of Liverpool, Liverpool (United Kingdom)
  7. KU Leuven, Leuven (Belgium); Univ. of York, York (United Kingdom)
  8. KU Leuven, Leuven (Belgium); GANIL CEA/DSM-CNRS/IN2P3, Caen (France)
  9. Univ. de Lyon, Villeurbanne Cedex (France)
  10. Univ. zu Köln, Köln (Germany)
  11. Argonne National Lab. (ANL), Argonne, IL (United States)
  12. Univ. of Lund, Lund (Sweden); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  13. GANIL CEA/DSM-CNRS/IN2P3, Caen (France); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  14. KU Leuven, Leuven (Belgium); European Organization for Nuclear Research (CERN), Geneva (Switzerland); Univ. of Manchester, Manchester (United Kingdom)
  15. Univ. of Manchester, Manchester (United Kingdom)
  16. KU Leuven, Leuven (Belgium); Belgian Nuclear Research Centre SCK CEN, Mol (Belgium)
  17. Univ. of Lund, Lund (Sweden)
  18. Univ. Complutense de Madrid, Madrid (Spain)
  19. Univ. de Huelva, Huelva (Spain)
  20. Technische Univ. München, Garching (Germany)
  21. Univ. of Jyväskylä, Jyvaskyla (Finland); Univ. of Helsinki, Helsinki (Finland)
  22. Univ. of Oslo, Oslo (Norway)
  23. Univ. of the West of Scotland, Paisley (United Kingdom); Univ. of Guelph, Guelph (Canada)
  24. Univ. of Warsaw, Warsaw (Poland)
  25. Weizmann Institute of Science, Rehovot (Israel)
  26. Univ. Libre de Bruxelles, Bruxelles (Belgium)
  27. Ghent Univ., Gent (Belgium)
  28. Univ. of York, York (United Kingdom)
  29. Univ. of Jyväskylä, Jyvaskyla (Finland)
  30. Technische Univ. Darmstadt, Darmstadt (Germany)
  31. Ludwig Maximilian Univ. München, Garching (Germany)
  32. KU Leuven, Leuven (Belgium); Univ. of the West of Scotland, Paisley (United Kingdom)
  33. Univ. of Jyväskylä, Jyväskylä (Finland); Univ. of Helsinki, Helsinki (Finland)
  34. KU Leuven, Leuven (Belgium); The Univ. of Ioannina, Ioannina (Greece)
  35. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  36. Paul Scherrer Inst. (PSI), Villigen (Switzerland); European Organization for Nuclear Research (CERN), Geneva (Switzerland)
  37. Univ. of York, York (United Kingdom); National Physical Lab, Teddington (United Kingdom)
  38. Univ. of Liverpool, Liverpool (United Kingdom); Univ. of the West of Scotland, Paisley (United Kingdom)
  39. Univ. of the West of Scotland, Paisley (United Kingdom)
  40. KU Leuven, Leuven (Belgium); Technische Univ. München, Garching (Germany)
  41. Georgia Inst. of Technology, Atlanta, GA (United States)
+ Show Author Affiliations

The neutron-deficient mercury isotopes serve as a classical example of shape coexistence, whereby at low energy near-degenerate nuclear states characterized by different shapes appear. The electromagnetic structure of even-mass 182-188Hg isotopes was studied using safe-energy Coulomb excitation of neutron-deficient mercury beams delivered by the REX-ISOLDE facility at CERN. The population of 0+1,2, 2+1,2 and 4+1 states was observed in all nuclei under study. Reduced E2 matrix elements coupling populated yrast and non-yrast states were extracted, including their relative signs. These are a sensitive probe of shape coexistence and may be used to validate nuclear models. The experimental results are discussed in terms of mixing of two different configurations and are compared with three different model calculations: the Beyond Mean Field model, the Interacting Boson Model with configuration mixing and the General Bohr Hamiltonian. Partial agreement with experiment was observed, hinting to missing ingredients in the theoretical descriptions.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
European Commission, Community Research and Development Information Service (CORDIS), Seventh Framework Programme (FP7); National Science Centre (Poland); United Kingdom Science and Technology Facilities Council; German Federal Ministry of Education and Research (BMBF); Spanish Ministerio de Economia y Competitividad (MINECO); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1558287
Journal Information:
European Physical Journal. A, Vol. 55, Issue 8; ISSN 1434-6001
Publisher:
SpringerCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Coexistence and mixing in Hg 182 , 184 journal October 2019

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