The Generation of Mass and Its Directivity

The mass of matter includes the mass of elementary particles and the interaction mass between the particles. So far there has been a great deal of research on the origin of the mass of the elementary particles, but there are few studies on the origin of the interaction mass. In this paper, we show that the electric field of a uniformly accelerating point charge in vacuum is curved toward the opposite direction of acceleration. When a positive charge system is accelerated, the interaction forces between its charges cannot cancel each other out; therefore the charge system will produce a self-action force opposite to the acceleration, thus generating interaction mass. The interaction mass is not constant, but varies with the direction of the acceleration. Finally, we conclude that the mass of object is related to its self-action and has directivity.