Physics Letters B (Sep 2014)
Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions
- J. Diriken,
- N. Patronis,
- A.N. Andreyev,
- S. Antalic,
- V. Bildstein,
- A. Blazhev,
- I.G. Darby,
- H. De Witte,
- J. Eberth,
- J. Elseviers,
- V.N. Fedosseev,
- F. Flavigny,
- Ch. Fransen,
- G. Georgiev,
- R. Gernhauser,
- H. Hess,
- M. Huyse,
- J. Jolie,
- Th. Kröll,
- R. Krücken,
- R. Lutter,
- B.A. Marsh,
- T. Mertzimekis,
- D. Muecher,
- F. Nowacki,
- R. Orlandi,
- A. Pakou,
- R. Raabe,
- G. Randisi,
- P. Reiter,
- T. Roger,
- M. Seidlitz,
- M. Seliverstov,
- K. Sieja,
- C. Sotty,
- H. Tornqvist,
- J. Van De Walle,
- P. Van Duppen,
- D. Voulot,
- N. Warr,
- F. Wenander,
- K. Wimmer
Affiliations
- J. Diriken
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- N. Patronis
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- A.N. Andreyev
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- S. Antalic
- Department of Nuclear Physics and Biophysics, Comenius University, 84248 Bratislava, Slovakia
- V. Bildstein
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- A. Blazhev
- IKP, University of Cologne, D-50937 Cologne, Germany
- I.G. Darby
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- H. De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- J. Eberth
- IKP, University of Cologne, D-50937 Cologne, Germany
- J. Elseviers
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- V.N. Fedosseev
- AB Department, CERN 1211, Geneva 23, Switzerland
- F. Flavigny
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- Ch. Fransen
- IKP, University of Cologne, D-50937 Cologne, Germany
- G. Georgiev
- CSNSM, CNRS/IN2P3, Universite Paris-Sud 11, UMR8609, F-91405 ORSAY Campus, France
- R. Gernhauser
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- H. Hess
- IKP, University of Cologne, D-50937 Cologne, Germany
- M. Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- J. Jolie
- IKP, University of Cologne, D-50937 Cologne, Germany
- Th. Kröll
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- R. Krücken
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- R. Lutter
- Fakultät für Physik, Ludwig-Maximilians-Universität München, D-85748 Garching, Germany
- B.A. Marsh
- AB Department, CERN 1211, Geneva 23, Switzerland
- T. Mertzimekis
- INP, NCSR “Demokritos”, GR-15310, Ag. Paraskevi/Athens, Greece
- D. Muecher
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- F. Nowacki
- Université de Strasbourg, IPHC, 23 rue du Loess, 67037 Strasbourg, France
- R. Orlandi
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- A. Pakou
- Department of Physics and HINP, The University of Ioannina, 45110 Ioannina, Greece
- R. Raabe
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- G. Randisi
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- P. Reiter
- IKP, University of Cologne, D-50937 Cologne, Germany
- T. Roger
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- M. Seidlitz
- IKP, University of Cologne, D-50937 Cologne, Germany
- M. Seliverstov
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- K. Sieja
- Université de Strasbourg, IPHC, 23 rue du Loess, 67037 Strasbourg, France
- C. Sotty
- CSNSM, CNRS/IN2P3, Universite Paris-Sud 11, UMR8609, F-91405 ORSAY Campus, France
- H. Tornqvist
- PH Department, CERN 1211, Geneva 23, Switzerland
- J. Van De Walle
- PH Department, CERN 1211, Geneva 23, Switzerland
- P. Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- D. Voulot
- AB Department, CERN 1211, Geneva 23, Switzerland
- N. Warr
- IKP, University of Cologne, D-50937 Cologne, Germany
- F. Wenander
- AB Department, CERN 1211, Geneva 23, Switzerland
- K. Wimmer
- Physik Department E12, Technische Universität München, D-85748 Garching, Germany
- DOI
- https://doi.org/10.1016/j.physletb.2014.08.004
- Journal volume & issue
-
Vol. 736,
no. C
pp. 533 – 538
Abstract
The νg9/2,d5/2,s1/2 orbitals are assumed to be responsible for the swift onset of collectivity observed in the region below 68Ni. Especially the single-particle energies and strengths of these orbitals are of importance. We studied such properties in the nearby 67Ni nucleus, by performing a (d,p)-experiment in inverse kinematics employing a post-accelerated radioactive ion beam (RIB) at the REX-ISOLDE facility. The experiment was performed at an energy of 2.95 MeV/u using a combination of the T-REX particle detectors, the Miniball γ-detection array and a newly-developed delayed-correlation technique as to investigate μs-isomers. Angular distributions of the ground state and multiple excited states in 67Ni were obtained and compared with DWBA cross-section calculations, leading to the identification of positive-parity states with substantial νg9/2 (1007 keV) and νd5/2 (2207 keV and 3277 keV) single-particle strengths up to an excitation energy of 5.8 MeV. 50% of the νd5/2 single-particle strength relative to the νg9/2-orbital is concentrated in and shared between the first two observed 5/2+ levels. A comparison with extended Shell Model calculations and equivalent (3He, d) studies in the region around 9040Zr50 highlights similarities for the strength of the negative-parity pf and positive-parity g9/2 state, but differences are observed for the d5/2 single-particle strength.
Keywords
