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Information × Registration Number 0225U004167, (0120U102221) , R & D reports Title Quantum and semi-classical aspects of collective processes in heavy atomic nuclei popup.stage_title Розрахунки ймовірності підбар`єрного та спонтанного поділу. Розрахунки густини числа частинок та коефіцієнтів поверхневого натягу енергії симетрії нагрітих ядер в залежності від параметра асиметрії та температури. Дослідження нейтронної шкіри та гало в атомних ядрах в рамках теорії Фермі-рідини. Head Ivanyuk Fedir O., Доктор фізико-математичних наук Registration Date 21-11-2025 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description1 The development of quantum Langevin approach for the investigation of the structure and rearrangement of atomic nuclei in complicated processes, in particular, in the process of sub-barrier fission of heavy nuclei. popup.description2 To describe relaxation processes in systems obeying Fermi statistics, a diffusion approximation to the Landau–Vlasov kinetic theory has been developed and applied, within which the effects of particle collisions are reproduced through the effective diffusion and mobility processes in momentum space. Within the framework of a semiclassical model based on the Vlasov kinetic equation for finite Fermi systems, the dynamic effects of the nuclear surface in isoscalar dipole modes of heavy nuclei are investigated. It was found that the dynamic effects of the nuclear surface have a significant impact on the nature of the isoscalar dipole modes. The isoscalar dipole force function has a two-resonance structure. Calculations of velocity fields in the dynamic surface approximation show the vortex nature of the low-energy isoscalar dipole resonance and the compression nature of the high-energy resonance. The pass method was applied to the statistical integral of the Grand Canonical Ensemble for the cases of one-component and two-component Van der Waals gas. This allowed us to obtain the equation of state and corrections to the pressure and density of the finite statistical system. These allow us to take into account the finite dimensions of the system and are expected to be used, in particular, in the case of a nuclear fireball arising in nucleus-nuclear collisions at high energies. Product Description popup.authors Магнер Олександр Григорович Valerii I. Abrosimov Sanzhur Andrij I Radionov Sergey V Krivenko_Emetov Yaroslav D. Ustym V. Hryhor'iev Serhii M. Fedotkin Dmytro V. Horpynchenko Serhii Y. Luk'ianov popup.nrat_date 2025-11-21 Close