3 years ago

Proton-neutron structure of first and second quadrupole excitations of 90 Sr

N. Pietralla, N. N. Arsenyev, V. Werner, A. P. Severyukhin


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.

Publisher URL: https://link.springer.com/article/0.1140/epja/i2018-12451-4

DOI: 10.1140/epja/i2018-12451-4

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