Phys.Rev. C 95, 054312 (2017)

N.N.Arsenyev, A.P.Severyukhin, V.V.Voronov, Nguyen Van Giai

Influence of complex configurations on the properties of the pygmy dipole resonance in neutron-rich Ca isotopes

NUCLEAR STRUCTURE ^{40,42,44,46,48,50,52,54,56,58,60}Ca; calculated binding energies, neutron skin thicknesses, electric dipole polarizability, S(n), S(2n), summed dipole strength below 10 MeV, energies and B(E2) for the first 2+ states, energies and B(Eλ) values for first 2+, 3-, 4+ and 5- states in ^46,48,50Ca, low-energy E1 strength distributions of ⁴⁰Ca, ⁴⁸Ca and ⁵⁰Ca, photoabsorption cross section and electric dipole polarizability for ⁴⁸Ca, transition proton and neutron densities to selected 1- states of ⁵⁰Ca and ⁵⁶Ca. Effects of phonon-phonon coupling (PPC) on the low-energy electric dipole response investigated by quasiparticle random phase approximation based on the Skyrme interaction SLy5. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.054312