Physics Letters B (Dec 2017)
Nucleon correlations and the structure of Zn413071
- S. Bottoni,
- S. Zhu,
- R.V.F. Janssens,
- M.P. Carpenter,
- Y. Tsunoda,
- T. Otsuka,
- A.O. Macchiavelli,
- D. Cline,
- C.Y. Wu,
- A.D. Ayangeakaa,
- B. Bucher,
- M.Q. Buckner,
- C.M. Campbell,
- C.J. Chiara,
- H.L. Crawford,
- M. Cromaz,
- H.M. David,
- P. Fallon,
- A. Gade,
- J.P. Greene,
- J. Harker,
- A.B. Hayes,
- C.R. Hoffman,
- B.P. Kay,
- A. Korichi,
- T. Lauritsen,
- J. Sethi,
- D. Seweryniak,
- W.B. Walters,
- D. Weisshaar,
- A. Wiens
Affiliations
- S. Bottoni
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Corresponding authors.
- S. Zhu
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Corresponding authors.
- R.V.F. Janssens
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- M.P. Carpenter
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- Y. Tsunoda
- Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- T. Otsuka
- Center for Nuclear Study, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Department of Physics, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Instituut voor Kern- en Stralingsfysica, KU Leuven, B-3001 Leuven, Belgium
- A.O. Macchiavelli
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- D. Cline
- Department of Physics, University of Rochester, Rochester, NY 14627, USA
- C.Y. Wu
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
- A.D. Ayangeakaa
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- B. Bucher
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
- M.Q. Buckner
- Lawrence Livermore National Laboratory, Livermore, CA 94551, USA
- C.M. Campbell
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- C.J. Chiara
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
- H.L. Crawford
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- M. Cromaz
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- H.M. David
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- P. Fallon
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- A. Gade
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA; Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA
- J.P. Greene
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- J. Harker
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
- A.B. Hayes
- Institute of Optics, University of Rochester, Rochester, NY 14627, USA
- C.R. Hoffman
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- B.P. Kay
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- A. Korichi
- CSNSM-IN2P3, F-91405 Orsay Campus, France
- T. Lauritsen
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- J. Sethi
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA; Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
- D. Seweryniak
- Physics Division, Argonne National Laboratory, Argonne, IL 60439, USA
- W.B. Walters
- Department of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
- D. Weisshaar
- National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, MI 48824, USA
- A. Wiens
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
- Journal volume & issue
-
Vol. 775
pp. 271 – 276
Abstract
The structure of 71Zn was investigated by one-neutron transfer and heavy-ion induced complex (deep-inelastic) reactions using the GRETINA-CHICO2 and the Gammasphere setups, respectively. The observed inversion between the 9/2+ and 1/2â states is explained in terms of the role of neutron pairing correlations. Non-collective sequences of levels were delineated above the 9/2+ isomeric state. These are interpreted as being associated with a modest oblate deformation in the framework of Monte-Carlo shell-model calculations carried out with the A3DA-m Hamiltonian in the pfg9/2d5/2 valence space. Similarities with the structure of Ni402868 were observed and the shape-coexistence mechanism in the N=40 region of neutron-rich nuclei is discussed in terms of the so-called Type-II shell evolution, with an emphasis on protonâneutron correlations between valence nucleons, especially those involving the shape-driving g9/2 neutron orbital.
