Abstract.
Starting from the Skyrme interaction \(f_{-}\) together with the density-dependent pairing interaction, we study the g factors for the \(2_{1,2}^{+}\) excitations of 88, 90Sr and 90, 92Zr. The coupling between one- and two-phonon terms in the wave functions of excited states is taken into account within the finite-rank separable approximation. Using the same set of parameters we describe available experimental data and give the prediction for 90Sr, \(g(2_{2}^{+})=+0.03\) in comparison to \( +0.31\) in the case of 92Zr.
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Severyukhin, A.P., Arsenyev, N.N., Pietralla, N. et al. Proton-neutron structure of first and second quadrupole excitations of 90Sr. Eur. Phys. J. A 54, 4 (2018). https://doi.org/10.1140/epja/i2018-12451-4
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DOI: https://doi.org/10.1140/epja/i2018-12451-4