Abstract.
Superdeformed bands in 88Mo and 89Tc were populated using 40Ca-induced fusion-evaporation reactions on 58Ni at a beam energy of 185MeV. Gamma-rays emitted in the reactions were detected using the Gammasphere spectrometer, in coincidence with charged particles detected by the Microball array. A new superdeformed band was assigned to the nucleus 88Mo, leading to a revisit of earlier configuration assignments for superdeformed structures in this nucleus. In particular, the theoretical interpretation of a pair of identical (isospectral) superdeformed bands in 88Mo/89Tc is discussed. The configurations that are assigned to the four SD bands belonging to 88Mo have properties that are predicted to be significantly affected by pair correlations.
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Communicated by D. Schwalm
Received: 1 October 2003, Revised: 30 January 2004, Published online: 21 September 2004
PACS:
21.10.Re Collective levels - 21.60.Cs Shell model - 23.20.Lv \(\gamma\) transitions and level energies - 27.50. + e \(59\leq A\leq 89\)
K. Lagergren: Present address: Department of Physics, Florida State University, Tallahassee, FL 32306, USA;
A. Görgen: Present address: DAPNIA/SPhN, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France.
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Lagergren, K., Cederwall, B., Clark, R.M. et al. Isospectral superdeformed bands in the N = 46 nuclei 88Mo and 89Tc. Eur. Phys. J. A 21, 375–381 (2004). https://doi.org/10.1140/epja/i2003-10222-0
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DOI: https://doi.org/10.1140/epja/i2003-10222-0