2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84762As it is known a model of a charged particle with finite size is a good tool to consider the effects of self- action and backreaction, caused by electromagnetic radiation. In this work the "size" of a charged particle is induced by its stochastic Brownian vibration. Appropriate equation of particle's motion with radiation force is derived. It is shown that the solutions of this equation correctly describe the effects of radiation reaction.LATEXClassical PhysicsMathematical Physicstext