Form Factor of a Relativistic Two-Particle System within the Relativistic Quasipotential Approach: Case of an Arbitrary Masses and a Scalar Current

Abstract

A new relativistic form factor for a bound two-particle system was obtained for the case ofa scalar current. The respective analysis was performed within the relativistic quasipotential approachbased on a covariant Hamiltonian formulation of quantumfield theory by going over to a three-dimensionalrelativistic configuration representation for the case of the interaction of two relativistic spinless particlesthat have arbitrary masses.