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Information × Registration Number 0206U000876, 0103U000539 , R & D reports Title Investigation of the bound-state spectrum of few-body quantum systems. popup.stage_title Head Tutik Ruslan Semenovich, Registration Date 08-02-2006 Organization Dniepropetrovsk national university popup.description2 A new semiclassical approach, avoiding disadvantages of the standard one, to the logarithmic perturbation theory for the bound-state problem within the framework of the radial Schrodinger equation and the relativistic Dirac and Klein-Gordon equations has been developed. A new efficient technique for the analytical evaluation of the critical value of the screening parameter for the Debye potential has been offered. The method of semiclassical expansions for the Regge-trajectories of bound states of the relativistic equations with the interaction involved in the nonminimal manner has been developed. A distinction in properties of meson spectra caused by the different choice of the Lorentz structure of the confinement potential between quarks was investigated. A new model for the Duffin-Kemmer oscillator was found. Product Description popup.authors popup.nrat_date 2020-04-02 Close