  The formation length of particles produced in the relativistic collisions of
hadrons and nuclei has relevance to fundamental principles of physics at small
interaction distances. The relation is expressed by z scaling observed in the
differential cross sections for the inclusive reactions at high energies. The
scaling variable reflects the length of the elementary particle trajectory in
terms of a fractal measure. Characterizing the fractal approach, we demonstrate
the relativity principles in space with broken isotropy. We derive relativistic
transformations accounting for asymmetry of space-time expressed by different
anomalous fractal dimensions of the interacting objects.
