## Reasons for change in artificial space objects own rotation

Purpose. Photometry in conjunction with positional observations is currently the main method of controlling the operation of artificial space objects in orbit with which radio communication is lost. This paper presents an analysis of long-range photometric observations of low-orbital artificia...

## Approximation of scattering phases for Argonne v18 potential

Purpose. This article is dedicated to the study of phase shifts for single-channel neutron-proton scattering. The phase shifts, which are obtained in the variable phase approach, are studied. For the approximation of phase shifts, a function is used in the form of a known formula for a pa...

## Asymptotics of a semiclassical type for wave functions of quasimolecules in problems of ion-molecular collisions

Purpose. To construct an asymptotics of a quasiclassical type for the two-center wave function of the tunneliding electron used for calculating of the two-electron exchange interaction in the problems of ion-molecular collisions with particle rearrangement.
Methods....

## Description of mass spectrum of Bc-meson family

Purpose. Calculation of the spectrum of masses of system $\overline{b}$c consisting of two heavy b and c quarks (Bc mesons family) wi...

## Optical characteristics and parameters of gas discharge plasma on a mixture of cadmium diodide vapor with helium and small addition of nitrogen

Purpose. To investigate the optical characteristics and parameters of the barrier discharge plasma on mixtures of cadmium diiodide vapor and helium with small molecular nitrogen additives at high pump pulse frequencies.
Methods. The creation of a gas-discharge...