Compton Scattering at the NLC and Large Extra Dimensions

TL;DR

This paper investigates how Compton scattering at the Next Linear Collider could reveal evidence of large extra dimensions and Weak Scale Quantum Gravity, showing significant deviations from the Standard Model predictions at TeV-scale energies.

Contribution

It demonstrates the potential of gamma e -> gamma e scattering as a sensitive test for large extra dimensions and quantum gravity effects at TeV energies.

Findings

Deviations from Standard Model cross sections are significant at NLC energies.

The test can probe fundamental gravity scales between 4 and 16 TeV.

Gamma e -> gamma e is an effective channel for detecting extra dimensions.

Abstract

We study Compton scattering, gamma e -> gamma e, in the context of the recent proposal for Weak Scale Quantum Gravity (WSQG) with large extra dimensions. It is shown that, with an ultraviolet cutoff $M_S \sim 1$ TeV for the effective gravity theory, the cross section for this process at the Next Linear Collider (NLC) deviates from the prediction of the Standard Model significantly. Our results suggest that, for typical proposed NLC energies and luminosities, WSQG can be tested in the range 4 TeV$\lsim M_S \lsim$ 16 TeV, making gamma e -> gamma e an important test channel.