Speaker
Description
Earlier, three-quasiparticle correlations in the ground state ($GSC_3$) were studied in [1,2] for static characteristics in the calculations of quadrupole moments in first excited 2^+ and 3^- states of Sn isotopes. Here we discuss $GSC_3$ for transitions with the energy $ω ≠0$ between these excited states. Calculations were performed for a large number of Sn isotopes. It was shown that, similar to the [1,2,3] results, and to the contrary to $GSC_2$ of the RPA case, $GSC_3$ give a considerable contribution to the B(E1) values for transitions between first excited $2^+$ and $3^-$ states. However, there is a specifity for the pairing case: it turned out that here the $GSC_3$ role is decreased as compared with the static case [1,2], but nevertheless it is rather noticeable. A comparison with the similar physical problems within the Quasiparticle-Phonon Model was performed.
- D. Voitenkov, S. Kamerdzhiev, S. Krewald, E.E. Saperstein and S.V. Tolokonnikov, Phys. Rev. C 85, 054319 (2012).
- С. П. Камерджиев, Д. А.Войтенков, Э. Е.Саперштейн, С. В.Толоконников, Письма в ЖЭТФ, том 108, 155 (2018).
- М. И. Шитов, Д. А. Войтенков, С. П. Камерджиев, С. В. Толоконников, Ядерная физика, том 85, 1 (2022).
| The speaker is a student or young scientist | Yes |
|---|---|
| Section | 1. Nuclear structure: theory and experiment |
