Multipole Modes for Triaxially Deformed Superfluid Nuclei

Abstract

To study shape fluctuations of nuclei in transitional regions, the collective Hamiltonian method has often been employed. We intend to construct the quadrupole collective Hamiltonian with the collective inertial functions given by the local quasiparticle random-phase approximation (QRPA) based on the Skyrme energy density functional. For this purpose, we first construct a practical framework of Skyrme QRPA for triaxial nuclear shapes with the finite amplitude method (FAM). We show quadrupole strength functions for a triaxial superfluid nucleus ${}^{188}$Os and the Thouless-Valatin rotational moment of inertia by the local FAM-QRPA for ${}^{106}$Pd.

4 pages, 2 figures, accepted for publication in Proceedings of Ito International Research Center (IIRC) Symposium "Perspectives of the Physics of Nuclear Structure" (JPS Proc. Conf.)

References in corpus (6)

• Beyond the relativistic mean-field approximation (III): collective Hamiltonian in five dimensions
• Finite amplitude method for the quasi-particle-random-phase approximation
• Broyden's Method in Nuclear Structure Calculations
• Efficient calculation for the quasiparticle random-phase approximation matrix
• Multipole modes of excitation in triaxially deformed superfluid nuclei
• Thouless-Valatin Rotational Moment of Inertia from the Linear Response Theory

Cited by in corpus (5)

• Nuclear Equation of State from ground and collective excited state properties of nuclei
• Finite-amplitude method for collective inertia in spontaneous fission
• Macroscopic manifestations of rotating triaxial superfluid nuclei
• Five-dimensional collective Hamiltonian with improved inertial functions
• Nuclear structure and reaction with quantum shape fluctuation