  The article focuses on study of clan model parameters and their target
dependence in light of void probability scaling for heavy (Ag and Br) and light
(C, N and O) groups of targets present in nuclear emulsion detector using 84 Kr
36 at around 1 A GeV. The variation of scaled rapidity gap (rap gap)
probability with single moment combination has been studied. We found that
experimental points are lying approximately on the negative binomial
distribution (NBD) curve, indicating a scaling behavior. The average clan
multiplicities for interactions, increases with the pseudo-rapidity interval
was also observed. The values of average multiplicity for AgBr targets are
larger than those for CNO target and also average number of particles per clan
increases with increase in pseudo-rapidity interval. We further observed that
for a particular target, average number of particles per clan increases with an
increase in the size of projectile nucleus.
