ExoticPi- atom mass spectrum

This work reviews the theoretical information on the   atom and definition of nonperturbative corrections to Hamittonian of interaction according to the basis investigation of the asymptotically behaviour of the loop function of scalar particles in the external electromagnet field. The constituent masses of the bound state are analytically determined. It is shown that, when determined the mass spectrum of a relativistic bound state   atom will show that the constituent mass component is usually introduced which differ from a mass of initial particles. In the given paper we determine the constituent mass and the binding energy of pi- atom with relativistic and nonperturbative corrections.

bound states, mass spectrum, hamiltonian