Multiplicity correlations in relativistic heavy ion collisions

The study of heavy ion interactions has become a subject of interest during the recent years. This is perhaps due to the fact that the collisions between the high energy particles and various atomic nuclei may provide information on multiparticle production which could never be obtained with a simple hydrogen target. The mechanism of multiparticle production and the nuclear fragment process have been studied by several workers. Valuable information on the mechanism of multiparticles production process and the structures of the hot nuclear matter formed as a result of the collisions may be obtained experimentally from the study of correlations amongst different secondary charged particles produced in the relativistic nucleus-nucleus interactions. Thus, in the present work and attempt has been made to investigate the correlations amongst different charged secondaries produced in ¹²C-emulsion and ²⁸Si-emulsion interactions at 4.5 AGeV. The results obtained in the present work are also compared with the results of the calculations performed according to the Modified Cascade Evaporation Model (MCEM)