TY - JOUR
T1 - Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions
AU - Diriken, Jan
AU - Patronis, Nikolas
AU - Andreyev, Andrei N.
AU - Antalic, Stanislav
AU - Bildstein, Vincenz
AU - Blazhev, Andrey
AU - Darby, Ian Gerard
AU - De Witte, Hilde
AU - Eberth, J
AU - Elseviers, Jytte
AU - Fedosseev, Valentin N.
AU - Flavigny, F.
AU - Fransen, Christoph
AU - Georgiev, Georgy
AU - Gernhauser, Roman
AU - Hess, Herbert L.
AU - Huyse, Mark
AU - Jolie, J.
AU - Kröll, Thorsten
AU - Krücken, Reiner
AU - Lutter, Rudi
AU - Marsh, Bruce A.
AU - Mertzimekis, Theodoros J.
AU - Mücher, Dennis
AU - Nowacki, Frédéric
AU - Orlandi, Riccardo
AU - Pakou, Athena
AU - Raabe, R.
AU - Randisi, G.
AU - Reiter, Peter
AU - Roger, Tomas
AU - Seidlitz, Michael
AU - Seliverstov, Maxim D.
AU - Sieja, K.
AU - Sotty, Christophe O.
AU - Törnqvist, Hans
AU - van de Walle, Jorden
AU - Van Duppen, Piet
AU - Voulot, Didier
AU - Warr, Nigel V.
AU - Wenander, Fredrik
AU - Wimmer, Kathrin
N1 - Funding Information:
This work has been funded by FWO-Vlaanderen (Belgium, grants G.0706.08 “Big Science”, ASP/08-SCK and G.0626.09 ), by KU Leuven (BOF grant GOA/10/10 ), by the Belgian Science Policy Office (Interuniversity Attraction Poles Programme, grants P6/23-C and P7/12-C “BriX network”), by the European Commission within the Seventh Framework Programme through I3-ENSAR (contract No. RII3-CT-2010-262010 ), by a grant from the European Research Council ( ERC-2011-AdG-291561-HELIOS ), by the Slovak Research and Development Agency (No. APVV-0105-10 ), by BMBF under contracts 06KY9136I , 05P12PKFNE , 06MT7178 and 06MT9156 and the Maier-Leibnitz-Laboratorium, Garching.
PY - 2014/9/7
Y1 - 2014/9/7
N2 - 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.
AB - 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.
KW - Nuclear physics
KW - Nuclear structure
KW - One-nucleon transfer reactions
KW - RIBs
UR - http://www.scopus.com/inward/record.url?scp=84907339913&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2014.08.004
DO - 10.1016/j.physletb.2014.08.004
M3 - Article
AN - SCOPUS:84907339913
SN - 0370-2693
VL - 736
SP - 533
EP - 538
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -