  We investigate the possibility of using the center-edge asymmetry to
distinguish graviton exchange from other new physics effects at hadron
colliders. Specifically, we study lepton-pair production within the ADD and RS
scenarios. At the Tevatron, the graviton-Z interference is the most important
contribution to the center-edge asymmetry, whereas at the LHC, the dominant
contribution comes from gluon fusion via graviton exchange, which has no
analogue at e^+ e^- colliders. We find that spin-2 and spin-1 exchange can be
distinguished up to an ADD cut-off scale, M_H, of about 5 TeV, at the 95% CL.
In the RS scenario, spin-2 resonances can be identified in most of the favored
parameter space.
