Abstract
We present the effect of energy loss of charm/anti-charm quarks produced in a relativistic heavy-ion collision as they traverse the resulting quark-gluon plasma on the azimuthal correlation of c (c) over bar and D (D) over bar pairs and correlated decay of charm into leptons. We employ an empirical model of energy loss by charm quark energy loss and find that the consequences are easily discernible as different cuts on their momenta are applied. We also notice a modest increase in the invariant mass spectrum of dileptons from correlated decay, as mentioned above due to energy loss.