[en] A new concept of the macroscopic tunneling time is added to our previous definition of the microscopic tunnelling time. The formally accusal jump of a time advance near the forward barrier wall is interpreted as a result of the superposition and interference of incoming and reflected waves. The reality 'H.-F. effect' is confirmed

[en] The method of calculation of the transmission coefficient and tunneling time of particles through a double barrier is proposed which takes into account the irreversibility of wave packets spreading. The resonance values of the transmission coefficient and tunneling time of neutrons through two barriers are calculated. The obtained value of tunneling time is compared with the experimental results

[en] Parity violation enhancement effects in neutron-nucleus interactions near the p-wave compound-resonances is examined in the shell-model approach to the nuclear reactions. The possibility of enhancement is justified as a result of the mixing of the continuum states with opposite parities, caused by the weak interaction. Analytical expressions are obtained for the spin rotation angle of transversally polarized neutrons in the medium, and for the relative difference of the total cross sections of the interaction between neutrons with different helicities and nuclei. Their calculated values for the nuclei ¹¹⁷Sn and ¹³⁹La are compared with the experimental data. (orig.)

[en] The non-stationary solution method for a problem of tunneling of nonrelativistic particles and photons through a barrier on the basis of multiple internal reflections of wave packets in relation of barrier boundaries is submitted. The method is described and proved in solving an one-dimensional problem of tunneling of the particle through a rectangular barrier. For problems of tunneling of the particle through a spherically symmetric barrier and the photon through an one-dimensional barrier the amplitudes of transmitted and reflected wave packets in relation to the barrier, times of the tunneling and the reflection are found using of the method. Hartman's and Fletcher's effect is analysed

[en] The analytical properties and the resonant structure of the nonrelativistic S-matrix are investigated for elastic scattering with absorption for central, noncentral and parity-violating interactions and when the equations of motion for particles inside a sphere with finite radius are unknown. The conditions for the completeness of wave functions outside the interaction sphere, for the symmetry and for the generalized unitarity of the S-matrix are used. The conditions of micro- and macro-causality for the obtained results are investigated. (author)

[en] We consider the coincidence events of two identical particles in light-ion nuclear reactions which lead to three bodies in the final state. In the description of the energy dependence of the coincidence rate it is shown that it is generally necessary to consider interference effects caused by resonance and background amplitude phases and also by space-time shifts between the sources of particle emission. (author)

[en] Explicit expressions are obtained for the energy dependence of the particle transmission coefficient and phase tunneling time through two rectangular barriers near resonance. The resonance half-width and the phase tunneling time for neutrons in resonance are calculated

[en] It is shown that space-time shifts between the α-particle decays of the intermediate nuclei ¹²C^* and ⁸Be^* from the reaction p+¹¹B→3α can cause interference minima in the α-particle spectra. (orig.)

[en] The explicit formulation of the initial conditions of the definition of the wave-packet tunneling time is proposed. This formulation takes adequately into account the irreversibility of the wave-packet space-time spreading. Moreover, it explains the violations of the Hartman effect, leading to a strong decrease of the tunneling times up to negative values for wave packets with large momentum spreads due to strong wave-packet time spreading