Analysis of target fragmentation induced by relativistic 24Mg

This is an experimental work in which, we focus on the target fragments production in the interactions of 4.5 A GeV/c 24Mg with emulsion nuclei. For the protons flying in the nuclear emulsion with a kinetic energy up to 400 MeV, the energy-range relations exhibit a power law form. The exponential decay is a characteristic shape of the gray and black particle energy spectra. The SRIM software succeeds to simulate the ionization behavior of the gray and black particles in the nuclear emulsion. The anisotropy factors belonging to the gray and black particle emission systems are always ∼3.5 and 1.3, respectively, irrespective of the projectile size or energy. In the light of the modified statistical model, the temperatures of the gray and black particle emission systems are predicted as 60 and 6 MeV, respectively. The results indicate that, the target fragmentation system is thermalized and moving towards an equilibrium.