Registration Number
0223U002064,
(0122U001955)
, R & D reports
Title
Comprehensive studies of the properties and mechanisms of interaction of particles with atomic nuclei for fundamental and applied applications
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Колективні ефекти в густині ядерних рівнів, поділ ядер та формування динейтрону.
Head
Kadenko Ihor M., Доктор фізико-математичних наук
Registration Date
07-02-2023
Organization
Taras Shevchenko National University of Kyiv
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Research and solution of important world-wide problems in the field of nuclear physics, namely the problems of describing the collective states of nucleons in the nucleus, the problems of nuclear fission, and the formation of dinetron in nuclei.
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Research object: Atomic nucleus, averaged probabilities of gamma transitions, nuclear fission, mass fragments of nuclear fission, spectra of neutrons and gamma quanta, cross sections of nuclear reactions, nucleon correlations in the nucleus, dineutron.
The purpose of the work: Construction and testing of new reliable analytical expressions for the photon force function, taking into account the influence of the effects of the structure of the nucleus (presence of low-energy states, isospin splitting of the giant dipole resonance, etc.) and the amplification between the response function and the FSF in excited nuclei. Construction and analysis of expressions for the density of nuclear levels taking into account the collective states of nuclei.
Development of a more reliable model for describing the release of neutrons and gamma quanta during fission of atomic nuclei. Study of the peculiarities of the formation of two-nucleon bound systems (dyneuter) in the vicinity of the surface of the nucleus and their influence on the properties of the output channels of nuclear reactions, including interaction of dineutron decay products with a heavy nucleus in the output channel of nuclear reactions.
Research methods: the use of complexes of nuclear-physical equipment and models for describing nuclear reactions, and the interaction of gamma quanta and neutrons with nuclei.
The effect of the relaxation of the collective vibrational states of nucleons on the density of nuclear levels (NDL) was studied and various expressions for NDL were implemented in the calculation codes of cross sections of nuclear reactions within the framework of the statistical model of the nucleus. The mass-energy characteristics of the fission fragments in the nuclei from the excitation energy were studied. Possible contributors of systematic errors to the process of bound dineutron formation were investigated.
Product Description
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Denisov Vitaly Yu.
Pliuiko Volodymyr A.
Sakhno Nadiia V.
Dzysiuk Nataliia R.
Horbachenko Oleksandr М.
Ostapchuk Oksana A.
Kolesnyk Oleksandr S.
Hohota Olha P.
Moroziuk Vladyslav Yu.
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2023-02-07
