  Long range correlations are searched for by analyzing the experimental data
on 16O-AgBr and 32S-AgBr collisions at 200A GeV/c and the results are compared
with the predictions of a multi phase transport (AMPT) model. The findings
reveal that the observed forward-backward (F-B) multiplicity correlations are
mainly of short-range in nature. The range of F-B correlations are observed to
extend with increasing projectile mass. The observed extended range of F-B
correlations might be due to overall multiplicity fluctuations arising because
of nuclear geometry. The findings are not sufficient for making any definite
conclusions regarding the presence of long-range correlations.
