Isoscalar Giant Resonances and Landau Parameters with Density-Dependent Effective Interactions

Isoscalar Resonances with J

Isoscalar and Isovector Giant Monopole Resonances from a Continuum Hartree-Fock Method

We motivate and summarise some recent results in the application of formally exact boundary conditions in nuclear time-dependent Hartree-Fock calculations, making use of Laplace transformations to calculate the values of the wave functions at the boundaries. We have realised the method in the case of giant monopole resonances of spherically-symmetric nuclei, and present strength functions of 16...

Scaling Calculation of Isoscalar Giant Resonances in Relativistic Thomas–Fermi Theory

We derive analytical expressions for the excitation energy of the isoscalar giant monopole and quadrupole resonances in finite nuclei, by using the scaling method and the extended Thomas–Fermi approach to relativistic mean field theory. We study the ability of several non-linear σ − ω parameter sets of common use in reproducing the experimental data. For monopole oscillations the calculations a...

Isoscalar Giant Quadrupole Resonance State in the Relativistic Approach with the Momentum-Dependent Self-Energies

We study the excited energy of the isoscalar giant quadrupole resonance with the scaling method in the relativistic many-body framework. In this calculation we introduce the momentum-dependent parts of the Dirac self-energies arising from the one-pion exchange on the assumption of the pseudo-vector coupling with nucleon field. It is shown that this momentumdependence enhances the Landau mass si...

Invasions with density-dependent ecological parameters.

The speed and the minimum carrying capacity needed for a successful population expansion into new territory are addressed using a reaction-diffusion model. The model is able to encapsulate a rich collection of ecological behaviours, including the Allee effect, resource depletion due to consumption, dispersal adaptation due to population pressure, biological control agents, and a range of breedi...