Experimental study of the 66Ni(d, p) 67Ni one-neutron transfer reaction

Jan Diriken, Nikolas Patronis, Andrei N. Andreyev, Stanislav Antalic, Vincenz Bildstein, Andrey Blazhev, Ian Gerard Darby, Hilde De Witte, J. Eberth, Jytte Elseviers, Valentin N. Fedosseev, F. Flavigny, Christoph Fransen, Georgy Georgiev, Roman Gernhauser, Herbert L. Hess, Mark Huyse, J Jolie, Thorsten Kröll, Reiner KrückenRudi Lutter, Bruce A Marsh, Theodoros J. Mertzimekis, D. Mücher, Riccardo Orlandi, Athena Pakou, R. Raabe, G. Randisi, Peter Reiter, Tomas Roger, Michael Seidlitz, Maxim D. Seliverstov, Christophe O. Sotty, Hans Törnqvist, Jorden van de Walle, Piet Van Duppen, Didier Voulot, Nigel V. Warr, Fredrik Wenander, Kathrin Wimmer

Research outputpeer-review

9 Scopus citations


The quasi-SU(3) sequence of the positive parity νg9/2,d5/2,s1/2 orbitals above the N=40 shell gap are assumed to induce strong quadrupole collectivity in the neutron-rich Fe (Z=26) and Cr (Z=24) isotopes below the nickel region. In this paper the position and strength of these single-particle orbitals are characterized in the neighborhood of 68Ni (Z=28, N=40) through the 66Ni(d,p)67Ni one-neutron transfer reaction at 2.95 MeV/nucleon in inverse kinematics, performed at the REX-ISOLDE facility in CERN. A combination of the Miniball γ-array and T-REX particle-detection setup was used and a delayed coincidence technique was employed to investigate the 13.3-μs isomer at 1007 keV in 67Ni. Excited states up to an excitation energy of 5.8 MeV have been populated. Feeding of the νg9/2 (1007 keV) and νd5/2 (2207 keV and 3277 keV) positive-parity neutron states and negative parity (νpf) states have been observed at low excitation energy. The extracted relative spectroscopic factors, based on a distorted-wave Born approximation analysis, show that the νd5/2 single-particle strength is mostly split over these two excited states. The results are also compared to the distribution of the proton single-particle strength in the 90Zr region (Z=40, N=50).

Original languageEnglish
Article number054321
JournalPhysical Review C - Nuclear Physics
Issue number5
StatePublished - 20 May 2015
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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