Transverse imaging of the proton in exclusive diffractive pp scattering

Details Transverse imaging of the proton in exclusive diffractive pp scattering Transverse imaging of the proton in exclusive diffractive pp scattering

2006-08-30

arxiv.org/abs/hep-ph/0608312v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures, uses ws-procs9x6.cls. Proceedings of XIV International Workshop on Deep Inelastic Scattering (DIS2006), Ts

Scientific paper

In a recent paper (hep-ph/0608271) we describe a new approach to rapidity gap survival (RGS) in the production of high-mass systems (H = dijet, Higgs, etc.) in exclusive double-gap diffractive pp scattering, pp -> p + H + p. It is based on the idea that hard and soft interactions are approximately independent (QCD factorization), and allows us to calculate the RGS probability in a model-independent way in terms of the gluon generalized parton distributions (GPDs) in the colliding protons and the pp elastic scattering amplitude. Here we focus on the transverse momentum dependence of the cross section. By measuring the "diffraction pattern," one can perform detailed tests of the interplay of hard and soft interactions, and even extract information about the gluon GPD in the proton from the data.

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