Isoscalar and isovector giant resonances in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni
arXiv:2009.00451 · doi:10.1016/j.nuclphysa.2021.122159
Abstract
We have studied the uncharacteristic behavior of the measured values of the isoscalar and isovector centroid energies, ECEN, of giant resonances with multipolarity L=0-3 in 44Ca, 54Fe, 64,68Zn and 56,58,60,68Ni. For this purpose, we carried out calculations of ECEN within the spherical Hartree-Fock (HF)-based random phase approximation (RPA) theory with 33 different Skyrme-type effective nucleon-nucleon interactions. We have also determined the Pearson linear correlation coefficients between the calculated centroid energies and the various nuclear matter (NM) properties associated with each interaction and determined the sensitivity of ECEN to NM properties. We compared the calculated centroid energies of the giant resonances with experimental data and discuss the results. We note in particular, that we obtain good agreement between the calculated ECEN of isovector giant dipole resonance and the available experimental data.
References in corpus (16)
- Neutron Star Observations: Prognosis for Equation of State Constraints
- Isospin Asymmetry in Nuclei and Neutron Stars
- Shape Coexistence and the Effective Nucleon-Nucleon Interaction
- Density slope of the nuclear symmetry energy from the neutron skin thickness of heavy nuclei
- Determination of the parameters of a Skyrme type effective interaction using the simulated annealing approach
- The TDHF Code Sky3D
- Nuclear matter incompressibility coefficient in relativistic and nonrelativistic microscopic models
- From Brueckner Approach to Skyrme-type Energy Density Functional
- Extended Theory of Finite Fermi Systems (Collective Vibrations in Closed Shell Nuclei)
- Physical Origin of Density Dependent Force of the Skyrme Type within the Quark Meson Coupling Model
- Effects of self-consistency violation in Hartree-Fock RPA calculations for nuclear giant resonances revisited
- Isoscalar Giant Dipole Resonance and Nuclear Matter Incompressibility Coefficient
- Self-Consistent Hartree-Fock Based Random Phase Approximation And The Spurious State Mixing
- Self-consistent calculations of the electric giant dipole resonances in light and heavy mass nuclei
- Consequences of self-consistency violations in Hartree-Fock random-phase approximation calculations of the nuclear breathing mode energy
- Equation of state and phase transitions in asymmetric nuclear matter