Signatures of Extra Dimensions at e-gamma and gamma-gamma Colliders
Abstract
We study the processes γ -> γ and γ γ -> γ γ, in the context of the proposal for Weak Scale Quantum Gravity (WSQG) with large extra dimensions. With an ultraviolet cutoff MS 1 TeV for the effective gravity theory, the cross sections obtained for these processes at the Next Linear Collider (NLC), with the γ an γ γ options, deviate from the predictions of the Standard Model significantly. Our results suggest that, for typical proposed NLC energies and luminosities, the predictions of WSQG can be tested in the range 1 TeV MS 10 TeV, making γ an γ γ colliders important tools for probing WSQG.
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