Self-consistent Skyrme quasiparticle random-phase approximation for use in axially symmetric nuclei of arbitrary mass

2010/05/31 by J. Terasaki, J. Engel · 66 citations
Physics and Astronomy · #Astronomical and nuclear sciences #Axial symmetry #Nuclear physics research studies #Phase (matter) #Physics #Quantum Chromodynamics and Particle Interactions #Quantum electrodynamics #Quantum mechanics #Quasiparticle #Random phase approximation #nucl-th

paper · pdf · doi:10.1103/physrevc.82.034326

published in Physical Review C 82(3) (American Institute of Physics) · 5 pages, 6 figures

arxiv created 2010/05/31 · openalex publication_date 2010/09/27 · arxiv updated 2014/11/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We describe a new implementation of the quasiparticle random-phase approximation (QRPA) in axially symmetric deformed nuclei with Skyrme and volume-pairing energy-density functionals. After using a variety of tests to demonstrate the accuracy of the code in ^24,26Mg and ¹⁶O, we report the first fully self-consistent application of the Skyrme QRPA to a heavy deformed nucleus, calculating strength distributions for several K^\ensuremathπ in ¹⁷²Yb. We present energy-weighted sums, properties of \ensuremathγ-vibrational and low-energy K^\ensuremathπ=0⁺ states, and the complete isovector E1 strength function. The QRPA calculation reproduces the properties of the low-lying 2⁺ states as well or better than it typically does in spherical nuclei.

Citations

• Effects of the particle-particle channel on properties of low-lying vibrational states
• Coordinate space Hartree-Fock-Bogoliubov calculations for the zirconium isotope chain up to the two-neutron drip line
• Deformed quasiparticle-random-phase approximation for neutron-rich nuclei using the Skyrme energy density functional
• Pairing effects on the collectivity of quadrupole states aroundMg<mml:mprescripts/><mml:none/>32

Cited by

• Dipole responses in Nd and Sm isotopes with shape transitions
• Thouless-Valatin rotational moment of inertia from linear response theory
• Pairing and deformation effects in nuclear excitation spectra
• Efficient calculation for the quasiparticle random-phase approximation matrix
• Comparative study of the requantization of the time-dependent mean field for the dynamics of nuclear pairing
• Theoretical description of nuclear collective excitations