Investigation of the process e? + e+ → μ? + μ+ + γ in nonlocal theory taking particle polarization into account

The process e^– + e^{+ –} + ⁺ + is investigated in the nonlocal theory of interaction, taking particle polarization into account. A general expression for the effective differential cross section, the energy and angular dependences, and the degree of circular and linear polarization of the -quanta are obtained. The total cross sections calculated using the nonlocal and local theories are compared.