Microscopic description of spontaneous fission based on a Gogny energy density functional including tensor contributions
Rodríguez-Guzmán R. Robledo L.M. Bernard R.N.
November 2024Institute of Physics
Journal of Physics G: Nuclear and Particle Physics
2024#51Issue 11
This paper extends previous studies on the impact of tensor forces in fission dynamics of neutron-deficient Thorium isotopes to other isotopic chains of heavy actinides and low-mass super-heavy nuclei. Calculations are carried out within a mean-field framework based on the Gogny-D1S parametrization supplemented with the D1ST2a perturbative tensor term as driving force. Fission barrier heights and spontaneous fission half-lives are used as benchmarks to analyze the impact of the tensor term. A significant reduction of fission barrier heights and half-lives is associated with the tensor component of the force.
fission , Gogny force , mean field , tensor interaction
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Physics Department, Nazarbayev University, 53 Kabanbay Batyr Ave., Astana, 010000, Kazakhstan
Center for Computational Simulation, Universidad Politécnica de Madrid, Campus Montegancedo, Boadilla del Monte, Madrid, E-28660, Spain
Departamento de Física Teórica and CIAFF, Universidad Autónoma de Madrid, Madrid, E-28049, Spain
CEA, DES, IRESNE, DER, SPRC, LEPh, Saint-Paul-lès-Durance, F-13115, France
Physics Department
Center for Computational Simulation
Departamento de Física Teórica and CIAFF
CEA
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