Effect of the tensor force on the charge-exchange spin-dipole excitations of 208Pb

Abstract

The charge-exchange spin-dipole (SD) excitations of 208Pb are studied by using a fully self-consistent Skyrme Hartree-Fock plus Random Phase Approximation (HF+RPA) formalism which includes the tensor interaction. It is found, for the first time, that the tensor correlations have a unique, multipole-dependent effect on the SD excitations, that is, they produce softening of 1- states, but hardening of 0- and 2- states. This paves the way to a clear assessment of the strength of the tensor terms. We compare our results with a recent measurement, showing that our choice of tensor terms improves the agreement with experiment. The robustness of our results is supported by the analytic form of the tensor matrix elements.

4 pages, 1 figure, 2 tables

References in corpus (8)

• Spin-orbit splitting and the tensor component of the Skyrme interaction
• Tensor interaction contributions to single-particle energies
• Evolution of nuclear shells with the Skyrme density dependent interaction
• Spin-orbit and tensor mean-field effects on spin-orbit splitting including self-consistent core polarizations
• Effects of the Tensor Force on the Multipole Response in Finite Nuclei
• Evolution of the proton sd states in neutron-rich Ca isotopes
• Charge Exchange Spin-Dipole Excitations of 90Zr and 208Pb and Neutron Matter Equation of State
• Constraints, limits and extensions for nuclear energy functionals

Cited by in corpus (40)

• Nuclear Equation of State from ground and collective excited state properties of nuclei
• Tensor interaction in mean-field and density functional theory approaches to nuclear structure
• Self-consistent relativistic quasiparticle random-phase approximation and its applications to charge-exchange excitations and $\beta$-decay half-lives
• The tensor part of the Skyrme energy density functional. III. Time-odd terms at high spin
• The Role of Tensor Force in Heavy-Ion Fusion Dynamics
• Tensor effective interaction in self-consistent Random Phase Approximation calculations
• The Nuclear Tensor Interaction in Covariant Energy Density Functional
• Properties of single-particle states in a fully self-consistent particle-vibration coupling approach
• Tensor-force effects on single-particle levels and proton bubble structure around the $Z$ or $N=20$ magic number
• Fragmentation of spin-dipole strength in ${}^{90}$Zr and ${}^{208}$Pb
• Skyrme functional with tensor terms from \textit{ab initio} calculations of neutron-proton drops
• Role of T=0 pairing in Gamow-Teller states in N=Z nuclei
• Fine structure of charge-exchange spin-dipole excitations in ${}^{16}$O
• Quantitative analysis of tensor effects in the relativistic Hartree-Fock theory
• The influence of tensor force on the microscopic heavy-ion interaction potential
• Relativistic Hartree-Fock-Bogoliubov model for axially deformed nuclei
• Tensor correlation, pairing interaction and deformation in Ne isotopes and Ne hypernuclei
• Spin-dipole strength functions of ${}^4$He with realistic nuclear forces
• Relativistic interpretation on the nature of nuclear tensor force
• Effects of tensor interaction on pseudospin energy splitting and shell correction
• Influence of the tensor interaction on heavy-ion fusion cross sections
• Properties of exotic nuclei and their linkage to the nucleonic interaction
• Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction
• Magnetic excitations in nuclei with neutron excess
• Self-consistent continuum random-phase approximation with finite-range interactions for charge-exchange excitations
• Quenching factor of Gamow-Teller and spin dipole giant resonances
• Dynamical effects of spin-dependent interactions in low- and intermediate-energy heavy-ion reactions
• Linear Response Theory with finite-range interactions
• Description of ${}^{93}$Nb stellar electron-capture rates by the Projected Shell Model
• Breakdown of the tensor component in the Skyrme energy density functional
• Charge-exchange excitations with finite range interactions including tensor terms
• Chiral NNLO${}_{\text{sat}}$ descriptions of nuclear multipole resonances within the random phase approximation
• Configuration interaction relativistic Hartree-Fock model
• Charge-exchange dipole excitations in deformed nuclei
• Exploring effects of tensor force and its strength via neutron drops
• Nuclear multipole responses from chiral effective field theory interaction
• Theory of nuclear collective vibrations
• Impact of pion tensor force on alpha clustering in ${}^{20}$Ne
• Axially Deformed Proton-Neutron Relativistic Quasiparticle Finite Amplitude Method for Charge-Exchange Transitions
• Effects of Tensor Force in the Relativistic Scheme: A Case Study of Neutron Drops