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Isospin Symmetry of Odd-Odd Mirror Nuclei: Identification of Excited States in N=Z-2 48Mn

Bentley, M.A., Chandler, C., Taylor, M.J., Brown, J.R., Carpenter, M.P., Davids, C., Ekman, J., Freeman, S.J., Garrett, P.E., Hammond, G., Janssens, R.V.F., Lenzi, S.M., Lister, C.J., du Rietz, R. and Seweryniak, D. (2006) Isospin Symmetry of Odd-Odd Mirror Nuclei: Identification of Excited States in N=Z-2 48Mn. Physical Review Letters, 97 (13). pp. 132501-1. ISSN 1079-7114

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Abstract

Excited states have been observed in the N=Z-2 odd-odd nucleus 48Mn for the first time. Through comparison with the structure of 48V, a first high-spin study of an odd-odd mirror pair has been achieved. Differences between the T=1 analogue states in this pair have been interpreted in terms of Coulomb effects, with the aid of shell-model calculations in the full pf valence space. Unlike other mirror pairs, the energy differences have been interpreted almost entirely as due to a monopole effect associated with smooth changes in radius (or deformation) as a function of angular momentum. In addition, the large energy shift between analogue negative-parity states is interpreted in terms of the electromagnetic spin-orbit interaction in nuclei.

Item Type: Article
Academic Units: The University of York > Physics (York)
Depositing User: York RAE Import
Date Deposited: 24 Feb 2009 10:33
Last Modified: 24 Feb 2009 10:33
Published Version: http://dx.doi.org/10.1103/PhysRevLett.97.132501
Status: Published
Publisher: The American Physical Society.
Identification Number: 10.1103/PhysRevLett.97.132501
URI: http://eprints.whiterose.ac.uk/id/eprint/7248

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