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New narrow resonances observed in the unbound nucleus F 15

Journal Article · · Physical Review. C
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  1. Centre National de la Recherche Scientifique (CNRS), Caen (France); Université Paris-Saclay, Orsay (France)
  2. Yale Univ., New Haven, CT (United States)
  3. Université Paris-Saclay, Orsay (France)
  4. Centre National de la Recherche Scientifique (CNRS), Caen (France)
  5. Chinese Academy of Sciences (CAS), Lanzhou (China)
  6. Normandie University, Caen (France)
  7. Univ. of Lyon (France)
  8. Federal Univ. of Sao Paulo (Brazil)
  9. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy)
  10. Horia Hulubei National Institute for Physics and Nuclear Engineering, Magurele (Romania)
  11. Univ. of Liverpool (United Kingdom)
  12. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy)
  13. KTH Royal Inst. of Technology, Stockholm (Sweden)
  14. Univ. of Belgrade (Serbia)
  15. Czech Academy of Sciences (CAS), Rez (Czech Republic)
  16. Polish Academy of Sciences (PAS), Krakow (Poland)
  17. Univ. of Valencia (Spain)
  18. Istituto Nazionale di Fisica Nucleare (INFN), Milano (Italy); Univ. di Milano (Italy)
  19. Univ. of York (United Kingdom)
  20. Univ. zu Koln (Germany)
  21. Univ. of California, Berkeley, CA (United States)
  22. Univ. of Sao Paulo (Brazil)
  23. University of Novi Sad (Serbia)
  24. Univ. Paris-Saclay, Gif-sur-Yvette (France)
  25. Univ. of Tokyo (Japan)
  26. Daresbury Lab. (United Kingdom)
  27. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy)
  28. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy); Univ. di Padova (Italy)
  29. Univ. of Surrey, Guildford (United Kingdom)
  30. Univ. di Milano (Italy)
  31. Universidad de Salamanca (Spain)
  32. Istituto Nazionale di Fisica Nucleare (INFN), Padova (Italy); Universite de Strasbourg (France)
  33. University of Huelva (Spain)
  34. Ankara University (Turkey)
  35. Istituto Nazionale di Fisica Nucleare (INFN), Legnaro (Italy); Univ. Paris-Saclay, Gif-sur-Yvette (France); Argonne National Lab. (ANL), Argonne, IL (United States)
  36. Institute for Nuclear Research, Atomki (Hungary)
  37. Institute of Physical and Chemical Research (RIKEN), Tokyo (Japan)
+ Show Author Affiliations
The structure of the unbound 15F nucleus is investigated using the inverse kinematics resonant scattering of a radioactive 14O beam impinging on a CH2 target. The analysis of 1H(14O,p)14O and 1H(14O,2p)13N reactions allowed the confirmation of the previously observed narrow 1/2 - resonance, near the two-proton decay threshold, and the identification of two new narrow 5/2- and 3/2- resonances. The newly observed levels decay by 1p emission to the ground of 14O, and by sequential 2p emission to the ground state (g.s.) of 13N via the 1- resonance of 14O. Gamow shell model (GSM) analysis of the experimental data suggests that the wave functions of the 5/2- and 3/2- resonances may be collectivized by the continuum coupling to nearby 2p- and 1p- decay channels. Finally, the observed excitation function 1H(14O, p)14O and resonance spectrum in 15F are well reproduced in the unified framework of the GSM.
Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
European Community; Helmholtz Association; Japan Society for the Promotion of Science (JSPS); USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC02-06CH11357; SC0019521
OSTI ID:
1869187
Journal Information:
Physical Review. C, Journal Name: Physical Review. C Journal Issue: 5 Vol. 105; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
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