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A recent suggestion that quantum gravity may become strong near the weak has several testable consequences. In addition to probing for the new (submillimeter) extra dimensions associated with these theories via experiments, one could search for the Kaluza Klein towers of gravitons which are predicted in these models and which can interact the fields of the Standard Model. Here we examine the indirect effects of massive gravitons being exchanged in fermion pair production in \ and Drell-Yan production at hadron colliders. In the latter case, examine a novel feature of this theory, which is the contribution of gluon initiated processes to lepton pair production. We find that these provide strong bounds, up to several TeV, on the string scale which essentially independent of the number of extra dimensions. In addition, we the angular distributions for fermion pair production with spin-2 exchanges and demonstrate that they provide a smoking gun signal for-scale quantum gravity which cannot be mimicked by other new physics.
JoAnne L. Hewett (Mon,) studied this question.