The quantization of the Weinberg-Salam model has been carried out in the neighborhood of classical solutions to the field equations describing an electrically charged vector (W-boson) field interacting with a neutral scalar field (the Higgs field) in the presence of a superstrong magnetic field, in which the nonlinear effects are taken into account nonperturbatively. The energy spectrum of quantum particles (normal modes of the vector and scalar fields) in the "vacuum" and "kink" sectors has been found. It is shown that the discrete symmetry of the model broken in the two-dimensional approximation is not restored if the instanton contribution to the tunneling effect is taken into account in the quasi-classical approximation.
Department of Theoretical Physics, Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
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