@article {044_Diriken,
	title = {Study of the deformation-driving orbital in $^{67}_{28}$Ni$_{39}$ using one-neutron transfer reactions},
	journal = {Phys. Lett. B},
	volume = {736},
	year = {2014},
	pages = {533{\textendash}538},
	abstract = {Abstract The νg$_{9/2}$, d$_{5/2}$, s$_{1/2}$ orbitals are assumed to be responsible for the swift onset of collectivity observed in the region below $^{68}$Ni. Especially the single-particle energies and strengths of these orbitals are of importance. We studied such properties in the nearby $^{67}$Ni 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 $^{67}$Ni were obtained and compared with DWBA cross-section calculations, leading to the identification of positive-parity states with substantial νg$_{9/2}$ (1007 keV) and νd$_{5/2}$ (2207 keV and 3277 keV) single-particle strengths up to an excitation energy of 5.8 MeV. 50\% of the νd$_{5/2}$ single-particle strength relative to the νg$_{9/2}-orbital is concentrated in and shared between the first two observed 5/2^{+} levels. A comparison with extended Shell Model calculations and equivalent ($^3$He, d) studies in the region around $^{90}_{40}$Zr$_{50}$ highlights similarities for the strength of the negative-parity pf and positive-parity g$_{9/2}$ state, but differences are observed for the d$_{5/2} single-particle strength.},
	keywords = {Nuclear physics},
	issn = {0370-2693},
	doi = {10.1016/j.physletb.2014.08.004},
	author = {J. Diriken and N. Patronis and A.N. Andreyev and S. Antalic and V. Bildstein and A. Blazhev and I.G. Darby and H. De Witte and J. Eberth and J. Elseviers and V.N. Fedosseev and F. Flavigny and Ch. Fransen and G. Georgiev and R. Gernhauser and H. Hess and M. Huyse and J. Jolie and Th. Kr{\"o}ll and R. Kr{\"u}cken and R. Lutter and B.A. Marsh and T.J. MertzimekisMertzimekis and D. Muecher and F. Nowacki and R. Orlandi and A. Pakou and R. Raabe and G. Randisi and P. Reiter and T. Roger and M. Seidlitz and M. Seliverstov and K. Sieja and C. Sotty and H. Tornqvist and J. Van De Walle and P. Van Duppen and D. Voulot and N. Warr and F. Wenander and K. Wimmer}
}
