TeV-scale electron Compton scattering in the Randall-Sundrum scenario

The spin-2 graviton excitations in the Randall-Sundrum gravity model provides a t-channel contribution to electron Compton scattering which competes favourably with the standard QED contributions. The phenomenological implications of these contributions to the unpolarized and polarized cross-sections are evaluated. The polarized cross-sections show a distinctive feature, namely at very high energies the combination (+-+) dominate over other, a result primarily arising due to the spin-2 nature of the exchange particle. The study of electron Compton scattering in the TeV range, which is feasible with laser backscattering of electron beams would be very useful for revealing the direct coupling to γγ of spin-2 Kaluza-Klein type excitations present in weak scale quantum gravity theory