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

Abstract

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.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [9];  [10];  [10];  [6];  [11];  [12];  [13];  [14];  [15];  [16];  [17];  [15] more »;  [18];  [10];  [15];  [19];  [10];  [20];  [21];  [22];  [23];  [24];  [25];  [26];  [6];  [10];  [27];  [3];  [3];  [28];  [29];  [16];  [30];  [20];  [22];  [31];  [28];  [24];  [32];  [6];  [33];  [34];  [29];  [35];  [24];  [29];  [36];  [10];  [37];  [38];  [22];  [25];  [39];  [24];  [40];  [22];  [3];  [35];  [35];  [10];  [10];  [41] « less
  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)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
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) (SC-26)
OSTI Identifier:
1558287
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 55; Journal Issue: 8; Journal ID: ISSN 1434-6001
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Wrzosek-Lipska, K., Rezynkina, K., Bree, N., Zielińska, M., Gaffney, L. P., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Carpenter, M. P., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A. N., Diriken, J., Ekström, A., Fitzpatrick, C., Fraile, L. M., Fransen, Ch., Freeman, S. J., García-Ramos, J. E., Geibel, K., Gernhäuser, R., Grahn, T., Guttormsen, M., Hadinia, B., Hadyńska-Klȩk, K., Hass, M., Heenen, P. -H., Herzberg, R. -D., Hess, H., Heyde, K., Huyse, M., Ivanov, O., Jenkins, D. G., Julin, R., Kesteloot, N., Kröll, Th., Krücken, R., Larsen, A. C., Lutter, R., Marley, P., Napiorkowski, P. J., Orlandi, R., Page, R. D., Pakarinen, J., Patronis, N., Peura, P. J., Piselli, E., Próchniak, L., Rahkila, P., Rapisarda, E., Reiter, P., Robinson, A. P., Scheck, M., Siem, S., Chakkal, K. Singh, Smith, J. F., Srebrny, J., Stefanescu, I., Tveten, G. M., Van Duppen, P., Van de Walle, J., Voulot, D., Warr, N., Wiens, A., and Wood, J. L. Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg. United States: N. p., 2019. Web. doi:10.1140/epja/i2019-12815-2.
Wrzosek-Lipska, K., Rezynkina, K., Bree, N., Zielińska, M., Gaffney, L. P., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Carpenter, M. P., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A. N., Diriken, J., Ekström, A., Fitzpatrick, C., Fraile, L. M., Fransen, Ch., Freeman, S. J., García-Ramos, J. E., Geibel, K., Gernhäuser, R., Grahn, T., Guttormsen, M., Hadinia, B., Hadyńska-Klȩk, K., Hass, M., Heenen, P. -H., Herzberg, R. -D., Hess, H., Heyde, K., Huyse, M., Ivanov, O., Jenkins, D. G., Julin, R., Kesteloot, N., Kröll, Th., Krücken, R., Larsen, A. C., Lutter, R., Marley, P., Napiorkowski, P. J., Orlandi, R., Page, R. D., Pakarinen, J., Patronis, N., Peura, P. J., Piselli, E., Próchniak, L., Rahkila, P., Rapisarda, E., Reiter, P., Robinson, A. P., Scheck, M., Siem, S., Chakkal, K. Singh, Smith, J. F., Srebrny, J., Stefanescu, I., Tveten, G. M., Van Duppen, P., Van de Walle, J., Voulot, D., Warr, N., Wiens, A., & Wood, J. L. Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg. United States. doi:10.1140/epja/i2019-12815-2.
Wrzosek-Lipska, K., Rezynkina, K., Bree, N., Zielińska, M., Gaffney, L. P., Petts, A., Andreyev, A., Bastin, B., Bender, M., Blazhev, A., Bruyneel, B., Butler, P. A., Carpenter, M. P., Cederkäll, J., Clément, E., Cocolios, T. E., Deacon, A. N., Diriken, J., Ekström, A., Fitzpatrick, C., Fraile, L. M., Fransen, Ch., Freeman, S. J., García-Ramos, J. E., Geibel, K., Gernhäuser, R., Grahn, T., Guttormsen, M., Hadinia, B., Hadyńska-Klȩk, K., Hass, M., Heenen, P. -H., Herzberg, R. -D., Hess, H., Heyde, K., Huyse, M., Ivanov, O., Jenkins, D. G., Julin, R., Kesteloot, N., Kröll, Th., Krücken, R., Larsen, A. C., Lutter, R., Marley, P., Napiorkowski, P. J., Orlandi, R., Page, R. D., Pakarinen, J., Patronis, N., Peura, P. J., Piselli, E., Próchniak, L., Rahkila, P., Rapisarda, E., Reiter, P., Robinson, A. P., Scheck, M., Siem, S., Chakkal, K. Singh, Smith, J. F., Srebrny, J., Stefanescu, I., Tveten, G. M., Van Duppen, P., Van de Walle, J., Voulot, D., Warr, N., Wiens, A., and Wood, J. L. Thu . "Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg". United States. doi:10.1140/epja/i2019-12815-2. https://www.osti.gov/servlets/purl/1558287.
@article{osti_1558287,
title = {Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg},
author = {Wrzosek-Lipska, K. and Rezynkina, K. and Bree, N. and Zielińska, M. and Gaffney, L. P. and Petts, A. and Andreyev, A. and Bastin, B. and Bender, M. and Blazhev, A. and Bruyneel, B. and Butler, P. A. and Carpenter, M. P. and Cederkäll, J. and Clément, E. and Cocolios, T. E. and Deacon, A. N. and Diriken, J. and Ekström, A. and Fitzpatrick, C. and Fraile, L. M. and Fransen, Ch. and Freeman, S. J. and García-Ramos, J. E. and Geibel, K. and Gernhäuser, R. and Grahn, T. and Guttormsen, M. and Hadinia, B. and Hadyńska-Klȩk, K. and Hass, M. and Heenen, P. -H. and Herzberg, R. -D. and Hess, H. and Heyde, K. and Huyse, M. and Ivanov, O. and Jenkins, D. G. and Julin, R. and Kesteloot, N. and Kröll, Th. and Krücken, R. and Larsen, A. C. and Lutter, R. and Marley, P. and Napiorkowski, P. J. and Orlandi, R. and Page, R. D. and Pakarinen, J. and Patronis, N. and Peura, P. J. and Piselli, E. and Próchniak, L. and Rahkila, P. and Rapisarda, E. and Reiter, P. and Robinson, A. P. and Scheck, M. and Siem, S. and Chakkal, K. Singh and Smith, J. F. and Srebrny, J. and Stefanescu, I. and Tveten, G. M. and Van Duppen, P. and Van de Walle, J. and Voulot, D. and Warr, N. and Wiens, A. and Wood, J. L.},
abstractNote = {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.},
doi = {10.1140/epja/i2019-12815-2},
journal = {European Physical Journal. A},
number = 8,
volume = 55,
place = {United States},
year = {2019},
month = {8}
}

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