Intrinsic gyroradius in the Kaluza-Klein theory

In this paper, gyroradius for a pointlike charged particle is derived from the Kaluza-Klein theory by introducing a magnetic field. It shows that hypothetic Klein’s pointlike particle in the five dimensions spacetime can be circumgyrating in a magnetic field to cover the volume that forms a determined particle in three dimensions. Some analogies of this derivation with the considered topology in the String Theory and M-Theory are commented