Tests of Low Scale Quantum Gravity in $e^-e^-$ and $\gamma \gamma$ Collisions
Abstract
Arkani-Hamed, Dimopoulos and Dvali have recently proposed that gravity may become strong at energies near 1 TeV due to the existence of large extra dimensions thus `removing' the hierarchy problem. In this talk we examine the exchange of towers of Kaluza-Klein gravitons and their influence on Moller scattering as well as the production of pairs of massive gauge bosons in collisions. These tower exchanges lead to a set of new dimension-8 operators that can significant alter the Standard Model expectations for these processes. In the case of collisions, the role of polarization for both the initial state photons and the final state gauge bosons in improving sensitivity to graviton exchange is emphasized.
Keywords
Cite
@article{arxiv.hep-ph/9907401,
title = {Tests of Low Scale Quantum Gravity in $e^-e^-$ and $\gamma \gamma$ Collisions},
author = {Thomas G. Rizzo},
journal= {arXiv preprint arXiv:hep-ph/9907401},
year = {2007}
}
Comments
7 pages, 4 figs, LaTex, Talk given at the World-Wide Study of Physics and Detectors for Future Linear Colliders(LCWS99), Sitges, Barcelona, Spain, 28 April-5 May 1999