Nuclear Physics Seminar
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2026-03-05 (Thursday)
room 1.01, Pasteura 5 at 10:15 
mgr Jan Miśkiewicz (IFT UW)Double beta decay within the Skyrme density-functional framework
Double beta decay is among the rarest radioactive processes, observed only in a few even–even nuclei near the valley of stability. Although the phenomenon itself is well established, it provides a stringent consistency test for nuclear states predicted within contemporary theoretical frameworks. Such validation is of paramount importance for reliable modeling of the yet unobserved neutrinoless double beta (0νββ) decay process.
The presentation focuses on the foundations of 2νββ decay and on the the- oretical treatment of spherical (48Ca) and highly triaxial (76Ge) 2νββ-active nuclei within a Skyrme SV density-functional No-Core CI (DFT-NCCI) frame- work developed by our group. The approach restores rotational symmetry and mixes states projected from self-consistent mean-field configurations obtained by solving the Hartree–Fock equations with a density-independent local Skyrme interaction.
The presentation focuses on the foundations of 2νββ decay and on the the- oretical treatment of spherical (48Ca) and highly triaxial (76Ge) 2νββ-active nuclei within a Skyrme SV density-functional No-Core CI (DFT-NCCI) frame- work developed by our group. The approach restores rotational symmetry and mixes states projected from self-consistent mean-field configurations obtained by solving the Hartree–Fock equations with a density-independent local Skyrme interaction.