Fission of ${}^{240}$Pu with symmetry-restored density functional theory

Abstract

Nuclear fission plays an important role in fundamental and applied science, from astrophysics to nuclear engineering, yet it remains a major challenge to nuclear theory. Theoretical methods used so far to compute fission observables rely on symmetry-breaking schemes where basic information on the number of particles, angular momentum, and parity of the fissioning nucleus is lost. In this work, we analyze the impact of restoring broken symmetries in the benchmark case of ${}^{240}$Pu.

7 pages, 3 figures, 1 table; Phys. Rev. Lett, in press

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• Beyond-mean-field approaches for nuclear neutrinoless double beta decay in the standard mechanism
• Angular Momentum of Fission Fragments from Microscopic Theory
• Axially-deformed solution of the Skyrme-Hartree-Fock-Bogoliubov equations using the transformed harmonic oscillator basis (IV) hfbtho (v4.0): A new version of the program
• Angular momentum projection in the deformed relativistic Hartree-Bogoliubov theory in continuum
• Skyrme-Hartree-Fock-Bogoliubov mass models on a 3D mesh. IIb. Fission properties of BSkG2
• Operator overlaps in harmonic oscillator bases with different oscillator lengths
• Formulation of the Generator Coordinate Method with arbitrary bases
• Impact of choices for center-of-mass correction energy on the surface energy of Skyrme energy density functionals
• Microscopic theory of angular momentum distributions across the full range of fission fragments
• A Nonequilibrium Information Entropy Approach to Ternary Fission of Actinides
• Microscopic Theory of Nuclear Fission
• Microscopic self-consistent description of induced fission: dynamical pairing degree of freedom