Diffractive gamma-gamma production at hadron colliders

Abstract

We compute the cross section for exclusive double-diffractive gamma-gamma production at the Tevatron, $p\bar{p}\to p+\gamma \gamma +\bar{p}$, and the LHC. We evaluate both the gluon-gluon and quark-antiquark t-channel exchange contributions to the process. The observation of exclusive gamma-gamma production at the Tevatron will provide a check on the model predictions, and offer an opportunity to confirm the expectations for exclusive double-diffractive Higgs production at the LHC.

Comments: 16 pages, 7 figures