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.
Description
Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions - ScienceDirect
%0 Journal Article
%1 DIRIKEN2014533
%A Diriken, J.
%A Patronis, N.
%A Andreyev, A.N.
%A Antalic, S.
%A Bildstein, V.
%A Blazhev, A.
%A Darby, I.G.
%A Witte, H. De
%A Eberth, J.
%A Elseviers, J.
%A Fedosseev, V.N.
%A Flavigny, F.
%A Fransen, Ch.
%A Georgiev, G.
%A Gernhauser, R.
%A Hess, H.
%A Huyse, M.
%A Jolie, J.
%A Kröll, Th.
%A Krücken, R.
%A Lutter, R.
%A Marsh, B.A.
%A Mertzimekis, T.
%A Muecher, D.
%A Nowacki, F.
%A Orlandi, R.
%A Pakou, A.
%A Raabe, R.
%A Randisi, G.
%A Reiter, P.
%A Roger, T.
%A Seidlitz, M.
%A Seliverstov, M.
%A Sieja, K.
%A Sotty, C.
%A Tornqvist, H.
%A Walle, J. Van De
%A Duppen, P. Van
%A Voulot, D.
%A Warr, N.
%A Wenander, F.
%A Wimmer, K.
%D 2014
%J Physics Letters B
%K blazhev myown reiter
%P 533 - 538
%R https://doi.org/10.1016/j.physletb.2014.08.004
%T Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions
%U http://www.sciencedirect.com/science/article/pii/S0370269314005711
%V 736
%X 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.
@article{DIRIKEN2014533,
abstract = {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.},
added-at = {2018-01-20T19:02:52.000+0100},
author = {Diriken, J. and Patronis, N. and Andreyev, A.N. and Antalic, S. and Bildstein, V. and Blazhev, A. and Darby, I.G. and Witte, H. De and Eberth, J. and Elseviers, J. and Fedosseev, V.N. and Flavigny, F. and Fransen, Ch. and Georgiev, G. and Gernhauser, R. and Hess, H. and Huyse, M. and Jolie, J. and Kröll, Th. and Krücken, R. and Lutter, R. and Marsh, B.A. and Mertzimekis, T. and Muecher, D. and Nowacki, F. and Orlandi, R. and Pakou, A. and Raabe, R. and Randisi, G. and Reiter, P. and Roger, T. and Seidlitz, M. and Seliverstov, M. and Sieja, K. and Sotty, C. and Tornqvist, H. and Walle, J. Van De and Duppen, P. Van and Voulot, D. and Warr, N. and Wenander, F. and Wimmer, K.},
biburl = {https://www.bibsonomy.org/bibtex/2cfef84a58c3635f45adcf255a4012623/ikpcologne},
description = {Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions - ScienceDirect},
doi = {https://doi.org/10.1016/j.physletb.2014.08.004},
interhash = {8076f2e5efe9dd5b1c53065d6290eca0},
intrahash = {cfef84a58c3635f45adcf255a4012623},
issn = {0370-2693},
journal = {Physics Letters B},
keywords = {blazhev myown reiter},
pages = {533 - 538},
timestamp = {2020-01-13T16:25:28.000+0100},
title = {Study of the deformation-driving νd5/2 orbital in 6728Ni39 using one-neutron transfer reactions},
url = {http://www.sciencedirect.com/science/article/pii/S0370269314005711},
volume = 736,
year = 2014
}