The photoresponse of the semimagic N= 82 nucleus Xe 136 was measured up to the
neutron separation energy S n using the (γ, γ′) reaction. A concentration of strong dipole …

A new class of many-body models, based on covariant density functional theory for excited
states, is presented. It allows a parameter free description of the fragmentation of nuclear …

The N= 82 nuclei Ce 140 and Ba 138 have been investigated by means of the (α, α′ γ)
coincidence method to study the pygmy dipole resonance (PDR). The experiments have …

A two-phonon version of the relativistic quasiparticle time-blocking approximation introduces
a new class of many-body models for nuclear structure calculations based on the covariant …

The E 1 strength function for 15 stable and unstable Sn even-even isotopes from A= 100 to
A= 176 are calculated using a self-consistent microscopic theory which, in addition to the …

We examine the response of closed-shell nuclei using a renormalized interaction, derived
with the Unitary Correlation Operator Method (UCOM) from the Argonne V18 potential, and a …

We explain the low-energy anomaly reported in several experimental studies of the radiative
dipole strength functions in medium-mass nuclei. These strength functions at very low γ …

The electric dipole E1 strength in the well-deformed even–even 152–162 Gd was calculated
using a model based on translational and Galilean invariant quasi-particle random phase …

The nuclear response theory for isospin-transfer modes in the relativistic particle-vibration
coupling framework is extended to include coupling of single nucleons to isospin-flip …

Background: Nuclear excited states within a wide range of excitation energies are formally
described by linear response theory. Besides its conventional formulation within the …