الفهرس 
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Abstract
The work done in this thesis deals with the study of interactions of z = 2 projectile fragments of 12c at 4.5 gev/c/n in emuslions. two nuclear emulsion stacks type NIKFI-BR-2 irradiated at the synchrophasatron of the JINR, DUBNA, USSR; the first with the 12c nuclei and the second with particles both at 4.5 GEV/C/N. i
In our previous study, it was shown that, the z = 2 pf`s produced in peripheral collisions of 12 c in emulsion exhibit a short mean free path (mfp) at afew centimeters from the emission vertex.
In the persent work, a study based on an event by event measurements is carried out in order to understand the nature of anomalons.
All the experimental data are compared with the non-anomalon particle, i.e with the primary particle beams. The projection angle and the dip angle of every track are measured and then the scattering angle (0) is calculated. the momentum is measured for each shower particle having a small dip angle by means of coulomb scattering using the coordinate measured also.