Monopole Strength Function of Deformed Superfluid Nuclei
- University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)
- RIKEN, Japan
- International School for Advanced Studies (SISSA), Trieste, Italy
- ORNL
We present an efficient method for calculating strength functions using the finite amplitude method (FAM) for deformed superfluid heavy nuclei within the framework of the nuclear density functional theory. We demonstrate that FAM reproduces strength functions obtained with the fully self-consistent quasi-particle random-phase approximation (QRPA) at a fraction of computational cost. As a demonstration, we compute the isoscalar and isovector monopole strength for strongly deformed configurations in ^{240}Pu by considering huge quasi-particle QRPA spaces. Our approach to FAM, based on Broyden's iterative procedure, opens the possibility for large-scale calculations of strength distributions in well-bound and weakly bound nuclei across the nuclear landscape.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 1027835
- Journal Information:
- Physical Review C, Vol. 84, Issue 4; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
Similar Records
Self-consistent description of multipole strength in exotic nuclei: Method
Roles of deformation and neutron excess on the giant monopole resonance in neutron-rich Zr isotopes