Abstract
Lifetimes of high spin states in the threeA=89 isobars89Nb,89Mo and89Tc have been measured via the Recoil Distance Doppler Shift technique and the fusion evaporation reactions58Ni(35Cl,xnypzα) at 120 MeV beam energy. Reduced transition probabilities for about 50γ transitions were extracted. The experimental branching ratios in89Mo and reduced transition probabilities in all three isobars are compared with the predictions of the spherical shell model based on the restrictedπ(p 1/2),π(g 9/2), ν(p1/2),ν(g 9/2) configuration space with two different types of residual interaction.
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On leave of absence from Institute of Nuclear Physics and Engineering, Bucharest, Romania
Supported by Deutsches BMBWFT
This work was supported by Deutsches BMBWFT. One of us (D.Z.) acknowledges a BMBWFT grant and the excellent working conditions at the University of Göttingen. The γ-spectra were analysed with the computer code VS created by J. Theuerkauf, S. Esser, S. Krink, N. Nicolay, and H. Wolters. The authors would like to thank the Köln accelerator crew for their efficient support.
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Zainea, D., Rudolph, D., Harder, A. et al. Electromagnetic decay strengths in the isobars89Nb,89Mo and89Tc. Z. Physik A - Hadrons and Nuclei 352, 365–372 (1995). https://doi.org/10.1007/BF01299754
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DOI: https://doi.org/10.1007/BF01299754