Scaling properties of relativistic wave functions of the nuclei /sup 4/He and /sup 3/He

Nucleon knockout from a relativistic nucleus in a collision with a nucleon is considered within the framework of the quasipotential formalism in ''light-front'' variables. The validity of the scale-invariant parametrization of relativistic wave functions of light nuclei is tested by comparing theoretical calculations with experimental distributions of spectator-fragments at different momenta of the incident nuclei.