A comparative study of results obtained from the interactions of 14.6A GeV 28Si in nuclear emulsion is presented. In this work the experimental data serve as one of the decisive signature of quark–gluon plasma formation. The data for 200 and 400 proton-emulsion interactions are used to investigate the assumption which consider interaction of 28Si-Em at 14.6A GeV is such that for a proton with total energy corresponding to that for effective number of interacting nucleons (12.6×14.6=175) or as a proton having the total energy of 28Si (i.e., 28×14.6=409 GeV). It is also shown that the relativistic quantum molecular dynamics model nicely predicts the multiplicities and correlations of shower and grey particles in the interactions of 28Si with emulsion nuclei at 14.6A GeV.