Narrow resonances in systems of spinning charged particles and their possible physical manifestations

In the paper the relativistic single-time equation is obtained describing electromagnetic interaction of two spinor charged particles in an arbitrary gauge. In the Feynman gauge it is show that there appear bound states embedded in the continuum, whose masses exactly coincide with the earlier calculated levels in the scalar model. These states can be related to the well-known narrow resonances discovered experimentally in e(+)e(-) and pp systems. In particular, the estimates of the resonance enhancement of the nucleosynthesis reaction of deuterium nuclei are presented.