Self-consistent calculations of the electric giant dipole resonances in light and heavy mass nuclei

Abstract

While bulk properties of stable nuclei are successfully reproduced by mean-field theories employing effective interactions, the dependence of the centroid energy of the electric giant dipole resonance on the nucleon number A is not. This problem is cured by considering many-particle correlations beyond mean-field theory, which we do within the "Quasiparticle Time Blocking Approximation". The electric giant dipole resonances in ${}^{16}$O, ${}^{40}$Ca, and ${}^{208}$Pb are calculated using two new Skyrme interactions.

4 pages, 4 figures

References in corpus (3)

• Fragmentation and systematics of the Pygmy Dipole Resonance in the stable N=82 isotones
• Extended Theory of Finite Fermi Systems: Application to the collective and non-collective E1 strength in ${}^{208}$Pb
• Self-consistent calculations within the Green's function method including particle-phonon coupling and the single-particle continuum

Cited by in corpus (18)

• Coupled-cluster computations of atomic nuclei
• First principles description of the giant dipole resonance in 16O
• On the toroidal nature of the low-energy E1 mode
• Application of an Extended Random Phase Approximation on Giant Resonances in Light, Medium and Heavy Mass Nuclei
• Self-consistency in the phonon space of the particle-phonon coupling model
• Low-energy M1 excitations in ${}^{208}$Pb and the spin channel of the Skyrme energy-density functional
• Effects of thermal shape fluctuations and pairing fluctuations on the giant dipole resonance in warm nuclei
• Estimating the relevance of predictions from nuclear mean-field models
• Phonon coupling effects in magnetic moments of magic and semi-magic nuclei
• Excitation spectra of exotic nuclei in a self-consistent phonon-coupling model
• Optimizing phonon space in the phonon-coupling model
• The phonon-coupling model for Skyrme forces
• Isoscalar and isovector giant resonances in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni
• Including particle-vibration coupling in the Fayans functional. Odd-even mass differences of semi-magic nuclei
• Electromagnetic Reactions and Few-Nucleon Dynamics
• Spurious dipole mode in random-phase approximation and in the RPA-based models
• Role of nuclear and electromagnetic fragmentation in the charge-changing reactions of 18O on carbon and lead targets at around 370 MeV/nucleon
• Self-consistent description of high-spin states in doubly magic ${}^{208}$Pb