A physical deduction of an equivalent Landau-Lifshitz equation of motion in classical electrodynamics. A new expression for the large distance radiation rate of energy

A new scheme is proposed in order to deduce an equation of motion for a spinless charged point particle leading to an equivalent Landau-Lifshitz equation of motion. Consequently Larmor's formula must be substituted by a new expression for the large distance radiation rate of energy. A constraint appears on the applicability of the Maxwell electromagnetic tensor. The particular case of a sudden force is analyzed in order to show the physical results predicted by the new model. A geometrical rearrangement of the energy explains the balance.