[en] The theory of quasi-elastic scattering of high energy electrons on nuclei is suggested, which makes it possible to investigate many-particle short-time dynamic correlation effects. The diagram technique for the short-time dynamic correlation investigation of arbitrary order has been worked out. The effective hamiltonian of electron-proton scattering is plotted, permitting to take into account the electron wave deformation effect by the nucleus in the reaction (e,e'p). The question of non-orthogonal nuclei wave functions in the reaction (e,ep) has been considered. In the example of ¹²C(e,ep)²B and ¹⁶O(e,e'p)¹⁵N reactions, when electron and proton are registered on coincidence, it is shown, that inclusion of short-time dynamic correlations in uniform approximation leads to the considerable cross section changes. In the region of high impulses in cross section maxima appear. Account of short-time dynamic correlations of higher orders rises the peacks of these maxima and shifts minima towards low impulses. The proton wave distortion effect in the reaction (e,e'p) is investigated. It has been pointed out, that interaction effect of toppled proton with the residual-nucleus shades the short-time dynamic correlation effects. That is why unique information on short-time dynamic correlation effects cannot be probably obtained from the reaction (e,e'p). The comparison of theoretical calculations with the available experimental data has been carried out. The theory and experiment are in a satisfactory agreement

[en] Within the framework of Jastrow method with account of many-particle short-time correlations, angular distributions of photonucleons are investigated. It is shown that in the energy range Esub(γ) > or approximately 10O MeV while studying correlation effects in photonuclear reactions one cannot be placed in the framework of independent pair models. At these energies a considerable contribution is made by the γ-quantum absorption mechanisms by correlation groups of three and more nucleons. It is shown that at Esub(γ) = 140 MeV the contributions from spin magnetic members in hamiltonian interaction of γ-quantum with nucleus are considerable. Account of these members leads to the qualitative change of photonucleons angular distributions

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[en] Phase shift analysis of the elastic three-to-three-body scattering is carried out. Corresponding expressions are obtained for the amplitude, the S matrix and the scattering cross sections that use the concepts of the scattering phase shifts and the mixing parameters. Equations are derived for the scattering phase shifts and the mixing parameters. Solution of these equations enables one to determine the three-particle were function in the continuous spectrum, the asymptotics of which is corresponding to the scattered wave. The elastic scattering cross section is calculated in the one-, two- and three-harmonics approximation

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[en] In the framework of the α-cluster model using hyperspherical function method the microscopic theory of photodesintegration of light nuclei into α-particles has been suggested and developed on the supposition that the corresponding elementary process proceed by quasiα-particle formation with in the nuclei. That approach has permitted to consider the final state interaction between all the α-particles in continuum spectrum, using αα potential and to describe quasi-α-particle using NN interaction. The reaction γ+¹²C'→3α is investigated