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Registration Number

0222U002368, 0116U008487 , R & D reports

Title

Investigation of the nuclear interaction in various nuclear processes by the means of the diffraction theory and the theory of bremsstrahlung

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Head

Maidaniuk Serhii P,

Registration Date

11-02-2022

Organization

Institute of Nuclear Research of the National Academy of Sciences of Ukraine

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Composition of the report: 58 p. - consists of an introduction, 4 chapters, lists of references in each section, main conclusions; 22 figures; 10 tables; 139 references. Object of research - form factors of charge distribution in nuclei, deuteron fission by diffraction scattering on nuclei, bremsstrahlung in reactions with hypernuclei; weakening of weak interaction in nuclei, nuclei-chronometers; collision of heavy ions with high centrality. The most interesting of the results of the work are: 1. Form factors of charge distribution density in the 12C nucleus are calculated within the framework of two Helm models: homogeneous-Gaussian and homogeneous-homogeneous and the parameters of these distributions are found. 2. For the first time bremsstrahlung analysis in study of hypernuclei is introduced; a new model of bremsstrahlung in the interaction of alpha particles with hypernuclei is created; it is found that the hyperon in the hypernucleus due to its own magnetic moment creates additional emission of the magnetic type (it enhances the total emission of photons); revealed the strongest role of the hyperon for light nuclei (calculations were obtained for hypernuclei and in comparison with normal nuclei 9B and 9Be). 3. It is shown that for a correct description of the probabilities of beta decay with universal renormalization of weak forces obtained from a special procedure of experimental data systematics for nuclei in the region A = 90 - 128, in calculations it is almost always necessary to consider up to 9th class diagrams. 4. The model of resonant decay (MPD) in the time of highly excited compound system, formed during central collisions of heavy ions, is proposed and developed, where three free parameters are introduced, responsible for 1) duration of highly excited system, 2) accuracy of estimation of such duration, and also for 3) the angle of departure of the final reaction products, the inclusive spectrum of which is measured.

Product Description

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2022-03-09