The Skyrme energy functional and low lying 2+ states in Sn, Cd and Te isotopes

Abstract

We study the predictive power of Skyrme forces with respect to low lying quadrupole spectra along the chains of Sn, Cd, and Te isotopes. Excitation energies and B(E2) values for the lowest quadrupole states are computed from a collective Schroedinger equation which as deduced through collective path generated by constraint Skyrme-Hartree-Fock (SHF) plus self-consistent cranking for the dynamical response. We compare the results from four different Skyrme forces, all treated with two different pairing forces (volume versus density-dependent pairing). The region around the neutron shell closure N=82 is very sensitive to changes in the Skyrme while the mid-shell isotopes in the region N<82 depend mainly on the adjustment of pairing. The neutron rich isotopes are most sensitive and depend on both aspects.

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• Global study of the spectroscopic properties of the first 2+ state in even-even nuclei
• Triaxiality and shape coexistence in Germanium isotopes
• Collective multipole excitations based on correlated realistic nucleon-nucleon interactions
• A theoretical description of energy spectra and two-neutron separation energies for neutron-rich zirconium isotopes
• New parameterization of Skyrme's interaction for regularized multi-reference energy density functional calculations
• Pairing and deformation effects in nuclear excitation spectra
• Large-Scale Self-Consistent Nuclear Mass Calculations
• Low-energy quadrupole states in neutron-rich tin nuclei
• A stabilized pairing functional
• Triaxial nuclear models and the outer crust of nonaccreting cold neutron stars
• Microscopic models for exotic nuclei