Weak scale quantum gravity effects for γγ→ZZ in the TeV region

We consider the effect of massive spin-2 gravitons that occur as Kaluza–Klein excitations of the graviton in a Weak scale Quantum Gravity scenario on the process γγ→ZZ, which in the Standard Model can proceed through loop diagrams. For a wide range of parameters, we show that the massive gravitons leave behind signatures that should be verifiable in a TeV scale scattering experiment.