Translation Gauge Fields and Space-Time Dislocations

Gauge fields of Poincaré translations define particular nongravitation structure on a space-time, which can be treated as sui generis space-time dislocations. Their source is the canonical energy-momentum tensor of matter, and these dislocations can introduce some corrections to standard values of gravitation effects, e. g. the Yukawa type corrections to the Newtonian gravitation potential.