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QCD rescattering mechanism for diffractive deep inelastic scattering
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. (High energy physics)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. (High energy physics)
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy. (High energy physics)
2010 (English)In: Physical review. D, Particles, fields, gravitation, and cosmology, ISSN 1550-7998, Vol. 82, no 5, 054036- p.Article in journal (Refereed) Published
Abstract [en]

We present a QCD-based model where rescattering between final state partons in deep inelastic scattering leads to events with large rapidity gaps and a leading proton. In the framework of this model the amplitude for multiple gluon exchanges is calculated in the eikonal approximation to all orders in perturbation theory. Both large and small invariant mass M_X limits are considered. The model successfully describes the precise HERA data on the diffractive deep inelastic cross section in the whole available kinematical range and gives new insight into the density of gluons at very small momentum fractions in the proton.

Place, publisher, year, edition, pages
2010. Vol. 82, no 5, 054036- p.
National Category
Subatomic Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-133570DOI: 10.1103/PhysRevD.82.054036ISI: 000282319800003OAI: oai:DiVA.org:uu-133570DiVA: diva2:369601
Funder
Swedish Research Council, 2007-4071Swedish Research Council, 2008-4137
Available from: 2010-11-11 Created: 2010-11-11 Last updated: 2010-12-03Bibliographically approved

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Publisher's full texthttp://arxiv.org/abs/arXiv:1005.3399
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