Quasiparticle random-phase approximation with quasiparticle-vibration coupling: Application to the Gamow-Teller response of the superfluid nucleus $^{120}$Sn

@article{Niu2016QuasiparticleRA,
  title={Quasiparticle random-phase approximation with quasiparticle-vibration coupling: Application to the Gamow-Teller response of the superfluid nucleus \$^\{120\}\$Sn},
  author={Yi Fei Niu and Gianluca Col{\`o} and E. Vigezzi and C. L. Bai and Hiroyuki Sagawa},
  journal={Physical Review C},
  year={2016},
  volume={94},
  pages={16}
}
We propose a self-consistent quasiparticle random-phase approximation (QRPA) plus quasiparticle-vibration coupling (QPVC) model with Skyrme interactions to describe the width and the line shape of giant resonances in open-shell nuclei, in which the effect of superfluidity should be taken into account in both the ground state and the excited states. We apply the new model to the Gamow-Teller resonance in the superfluid nucleus Sn120, including both the isoscalar spin-triplet and the isovector… 
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28 Citations

28 Citations

Time-Reversed Particle-Vibration Loops and Nuclear Gamow-Teller Response.
TLDR
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The nuclear response theory for isospin-transfer modes in the relativistic particle-vibration coupling framework is extended to include coupling of single nucleons to isospin-flip (charge-exchange)…
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The framework of the random-phase approximation (RPA) based on the relativistic Hartree-Fock (RHF) theory is extended to achieve a self-consistent calculation with the $\ensuremath{\rho}$-meson…
Microscopic optical potential obtained from energy-density-functional approach for neutron–nucleus elastic scattering
Nucleon–nucleus (NA) optical potentials are microscopically generated from a fully self-consistent framework of the particle-vibration coupling (PVC), in which the nucleon–nucleon (NN) effective…
Gamow-Teller Strength in ^{48}Ca and ^{78}Ni with the Charge-Exchange Subtracted Second Random-Phase Approximation.
TLDR
A fully self-consistent subtracted second random-phase approximation for charge-exchange processes with Skyrme energy-density functionals with implications for the computation of nuclear matrix elements for neutrinoless double-β decay in the same framework.
Towards a self-consistent dynamical nuclear model
Density Functional Theory (DFT) is a powerful and accurate tool exploited in Nuclear Physics to investigate the ground-state and some collective properties of nuclei along the whole nuclear chart.…
Beyond mean-field description of Gamow-Teller resonances and β-decay
β-decay half-lives set the time scale of the rapid neutron capture process, and are therefore essential for understanding the origin of heavy elements in the universe. The random-phase approximation…
Particle-vibration coupling for giant resonances beyond the diagonal approximation
A self-consistent particle-vibration coupling (PVC) model without diagonal approximation is presented. The diagonal approximation, that neglects completely the interaction between the doorway states,…
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In the paper the non-linear generalization of the time blocking approximation (TBA) is presented. The TBA is one of the versions of the extended random-phase approximation (RPA) developed within the…
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