Isospin Symmetry of Odd-Odd Mirror Nuclei: Identification of Excited States in N=Z-2 {sup 48}Mn
- Department of Physics, University of York, Heslington, York YO10 5DD (United Kingdom)
- School of Chemistry and Physics, Keele University, Keele, Staffordshire ST5 5BG (United Kingdom)
- Argonne National Laboratory, 9700 South Cass Avenue, Argonne, Illinois 60439 (United States)
- Department of Physics, Lund University, S-22100 Lund (Sweden)
- Department of Physics, University of Guelph, Guelph, Ontario N1G2W1 (Canada)
- Dipartimento di Fisica dell'Universita and INFN, Sezione di Padova, I-35131 Padova (Italy)
Excited states have been observed in the N=Z-2 odd-odd nucleus {sup 48}Mn for the first time. Through comparison with the structure of {sup 48}V, 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.
- OSTI ID:
- 20860875
- Journal Information:
- Physical Review Letters, Vol. 97, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.97.132501; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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