Hadronic decays of τ -lepton have been investigated in the framework of Quark Confinement Model.Branching ratios of τ decays with one pseudoscalar, vector or axial vector meson and with two
pions in the final state have been calculated. The numerical results are in a satisfactory agreement with experimental data.

A new relativistic form factor for a bound two-particle system was obtained for the case of a vector current. The present consideration was performed within the relativistic quasipotential approach
based on the covariant Hamiltonian formulation of quantum field theory by going over to the three dimensional relativistic configuration representation for the case of interaction between two relativistic spinless particles of arbitrary mass.

We investigate target mass corrections to the unpolarized structure functions of the deep-inelastic scattering by using the traditional Georgi–Politzer method and another approaches. The recent
methods for solving the ‘threshold’ problem arisen in the limit as the Bjorken variable x tends to unity are discussed. We present results of a new approach and demonstrate that, in the large-x region, target mass corrections to structure functions calculated by using this method noticeably differ that other approaches give.

Диссертация на соискание академической степени магистра технических наук по специальности 1-43 80 01 «Электроэнергетика и электротехника» специализации «Инновационные технологии в электроэнергетике и промышленности». Научный руководитель : к.т.н., доцент Добродей А. О.