Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei

Abstract

Based on the Hartree-Fock-Bogoliubov solutions in large deformed coordinate spaces, the finite amplitude method for quasiparticle random phase approximation (FAM-QRPA) has been implemented, providing a suitable approach to probe collective excitations of weakly-bound nuclei embedded in the continuum. The monopole excitation modes in Magnesium isotopes up to the neutron drip line have been studied with the FAM-QRPA framework on both the coordinate-space and harmonic oscillator basis methods. Enhanced soft monopole strengths and collectivity as a result of weak-binding effects have been unambiguously demonstrated.

arXiv comment5 pages, 4 figures, accepted for PRC (Rapid Comm.)

References in corpus (32)

• The New Heavy Mesons: A Status Report
• Mean-field description of ground-state properties of drip-line nuclei: Pairing and continuum effects
• Exotic modes of excitation in atomic nuclei far from stability
• Neutron halo in deformed nuclei
• Global performance of covariant energy density functionals: ground state observables of even-even nuclei and the estimate of theoretical uncertainties
• Finite amplitude method for the RPA solution
• Constraining the nuclear equation of state at subsaturation densities
• Di-neutron correlation and soft dipole excitation in medium mass neutron-rich nuclei near drip-line
• Nuclear Skins and Halos in the Mean-Field Theory
• Finite amplitude method for the quasi-particle-random-phase approximation
• Broyden's Method in Nuclear Structure Calculations
• Deformed quasiparticle-random-phase approximation for neutron-rich nuclei using the Skyrme energy density functional
• Self-consistent calculation of nuclear photoabsorption cross section: Finite amplitude method with Skyrme functionals in the three-dimensional real space
• Information content of the low-energy electric dipole strength: correlation analysis
• Axially symmetric Hartree-Fock-Bogoliubov Calculations for Nuclei Near the Drip-Lines
• Deformed Coordinate-Space Hartree-Fock-Bogoliubov Approach to Weakly Bound Nuclei and Large Deformations
• Multipole strength function of deformed superfluid nuclei made easy
• Finite Amplitude Method for Charge-Changing Transitions in Axially-Deformed Nuclei
• Low energy collective modes of deformed superfluid nuclei within the finite amplitude method
• Self-consistent Skyrme QRPA for use in axially-symmetric nuclei of arbitrary mass
• Living on the edge of stability, the limits of the nuclear landscape
• Implementation of the finite amplitude method for the relativistic quasiparticle random-phase approximation
• Feasibility of the finite amplitude method in covariant density functional theory
• Quasi-particle continuum and resonances in the Hartree-Fock-Bogoliubov theory
• Nuclear Halos and Drip Lines in Symmetry-Conserving Continuum HFB Theory
• Continuum Hartree-Fock-Bogoliubov theory for weakly bound deformed nuclei using coordinate-space Green's function method
• Low-energy monopole strength in exotic Nickel isotopes
• Hartree-Fock-Bogoliubov descriptions of deformed weakly-bound nuclei in large coordinate spaces
• Evolution of Surface Deformations of Weakly-Bound Nuclei in the Continuum
• Roles of deformation and neutron excess on the giant monopole resonance in neutron-rich Zr isotopes
• Pigmy resonance in monopole response of neutron-rich Ni isotopes ?
• The spectra of mixed ${}^3$He-${}^4$He droplets

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• Finite amplitude method on the deformed relativistic Hartree-Bogoliubov theory in continuum: The isoscalar giant monopole resonance in exotic nuclei
• Multipole modes of excitation in triaxially deformed superfluid nuclei
• Triaxiality induced monopole-quadrupole-hexadecupole coupling in the isoscalar giant resonances for ${}^{86}\text{Ge}$
• Low-energy monopole strength in spherical and deformed nuclei : cluster and soft modes
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