Do two large gaps signify double-pomeron exchange?

Two-gluon exchange model predictions for double Pomeron jet production.

I extend the two gluon exchange picture of elastic scattering, known as the Low-Nussinov or subtractive quark model, to predict cross sections for double pomeron exchange processes. In particular, I calculate pp̄ → pp̄qq̄ where the qq̄ partons will appear as jets separated from the final p and p̄ by large gaps in rapidity. The predicted cross section is large enough that this process should be obser...

Inclusive Higgs production via double pomeron exchange

We evaluate inclusive Higgs boson and dijet cross-sections at the Tevatron collider via double pomeron exchange. Such inclusive processes, normalized to the observed dijet rate observed at run I by the CDF collaboration, noticeably increase the predictions for Higgs production in diffractive events at the Tevatron Run II. 1. Theoretical framework It has been shown [1, 2] that Higgs boson and di...

Non-forward Double Pomeron Exchange in Qcd

It is well-known that the bare pomeron singularity in QCD 1 is violating the Froissart bound. The computation in the QCD framework of unitarity corrections to the bare pomeron is thus required. The first order correction implies the computation of the two-pomeron contribution to the elastic gluon-gluon amplitude. The aim of our paper is to give the first complete derivation of the analytical ex...

Double Pomeron Exchange at the Tevatron: Results from Cdf

Jet Production Cross Section with Double Pomeron Exchange

I will discuss hadron-hadron collisions where the final state is kinematically of the kind associated with double-pomeron-exchange (DPE) and has large transverse momentum jets. I will show that in addition to the conventional factorized (FDPE) contribution, there is a non-factorized (NDPE) contribution which has no pomeron beam jet. Results of calculations from a simple model of DPE for two-jet...