Diriken, J., Patronis, N., Andreyev, A.N. orcid.org/0000-0003-2828-0262 et al. (39 more authors) (2014) Study of the deformation-driving vd5/2 orbital in 6728Ni39 using one-neutron transfer reactions. Physics Letters B. pp. 533-538. ISSN 0370-2693
Abstract
Abstract The ν g 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 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 ν g 9 / 2 (1007 keV) and ν d 5 / 2 (2207 keV and 3277 keV) single-particle strengths up to an excitation energy of 5.8 MeV. 50% of the ν d 5 / 2 single-particle strength relative to the ν g 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 (3He, d) studies in the region around 9040Zr50 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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © Authors 2014. This content is made available by the publisher under a Creative Commons CC BY Licence |
Keywords: | Nuclear physics,One-nucleon transfer reactions,RIBs,Nuclear structure |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 07 Dec 2015 14:54 |
Last Modified: | 04 Nov 2024 01:13 |
Published Version: | https://doi.org/10.1016/j.physletb.2014.08.004 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1016/j.physletb.2014.08.004 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80427 |