Summing loops in QCD: Exclusive Higgs production and the survival probability

Details Summing loops in QCD: Exclusive Higgs production and the survival probability Summing loops in QCD: Exclusive Higgs production and the survival probability

2009-08-24

arxiv.org/abs/0908.3450v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

52 pages, 22 figures

Scientific paper

The Pomeron loop amplitude and the amplitude for the diagram with any general number of loops is derived in the QCD dipole approach. It was found that the major contribution to the amplitude of an arbitrary Pomeron enhanced diagram, is equivalent to the diagram with non interacting Pomerons. This provides the necessary tools for solving the long standing theoretical problem of summing over Pomeron loop diagrams. In this theoretical framework the contribution of the full set of enhanced diagrams to the survival probability is estimated. This enables an accurate prediction for the exclusive cross section for diffractive Higgs production, which includes the suppression factor needed to screen out the full set of hard re-scattering corrections, in QCD.

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