Abstract
The emergence of the pairing effect of identical nucleons in the j = 9/2 state in low-lying excited states of nuclei near 90Zr (N = 50, Z = 40) is discussed. Multiplets of states with seniority s ≥ 2, the splitting of which is determined by the proton pairing energy, are clearly visible in the nuclear spectra for a chain of N = 50 isotones. A comparison of the spectra of ground state multiplets, calculated in the δ-interaction approximation, with experimental data and results from other theoretical calculations shows this approach can be used to describe the structure of spectra and level positions with high J values.
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Original Russian Text © M.E. Stepanov, L.T. Imasheva, B.S. Ishkhanov, T.Yu. Tretyakova, 2018, published in Izvestiya Rossiiskoi Akademii Nauk, Seriya Fizicheskaya, 2018, Vol. 82, No. 6.
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Stepanov, M.E., Imasheva, L.T., Ishkhanov, B.S. et al. Effect of Nucleon Pairing in the Spectra of N = 50 Isotones. Bull. Russ. Acad. Sci. Phys. 82, 697–701 (2018). https://doi.org/10.3103/S1062873818060291
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DOI: https://doi.org/10.3103/S1062873818060291