# 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…

## Figures and Tables from this paper

## 28 Citations

Time-Reversed Particle-Vibration Loops and Nuclear Gamow-Teller Response.

- PhysicsPhysical review letters
- 2019

It is found that this new correlation mechanism is fully responsible for the appearance of the strength in the (n, p) branch and a very good agreement up to excitation energies beyond the giant resonance region when taking into account a phenomenological admixture of the isovector spin monopole transitions.

Coupling charge-exchange vibrations to nucleons in a relativistic framework: Effect on Gamow-Teller transitions and β-decay half-lives

- PhysicsPhysical Review C
- 2018

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)…

Gamow-Teller excitations at finite temperature: Competition between pairing and temperature effects

- PhysicsPhysical Review C
- 2020

The relativistic and nonrelativistic finite temperature proton-neutron quasiparticle random phase approximation (FT-PNQRPA) methods are developed to study the interplay of the pairing and temperature…

Self-consistent random-phase approximation based on the relativistic Hartree-Fock theory: Role of
ρ
-tensor coupling

- PhysicsPhysical Review C
- 2020

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

- PhysicsInternational Journal of Modern Physics E
- 2018

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.

- PhysicsPhysical review letters
- 2020

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

- Physics
- 2017

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

- Physics
- 2018

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

- PhysicsPhysical Review C
- 2020

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,…

Self-consistency in the phonon space of the particle-phonon coupling model

- Physics
- 2018

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…