Impact of core vibrations on the single particle structure: from light to superheavy nuclei

Self-consistent relativistic particle-vibration coupling (PVC) model [1] is applied to a systematic study of singleparticle spectra of nuclei ranging from light to superheavy ones [2] and generalized to the case of superfluid systems [3]. An example of the obtained results compared to data is shown in Fig. 1. The column (sph) shows the singleparticle spectra obtained in spherical relativistic mean-field (RMF) calculations with NL3* parametrization while column (sph+PVC) includes also particle-vibration coupling. Other columns display the results obtained with inclusion of deformation (def) [4], time-odd (TO) mean fields, and the results obtained by combining these effects with PVC (“def+TO+PVC”). One can see that the major impact comes from the PVC which causes general compression of the spectra leading to a better agreement with experiment and in some cases to changes of the level sequences. The calculated spectroscopic factors of dominant singleparticle levels in the vicinity of the Fermi surface vary between 0.5 and 0.9, see some examples in Table 1. Thus, these states retain basically their single-particle nature.