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Deep inelastic scattering data and the problem of saturation in small- x physics

Deep inelastic scattering data and the problem of saturation in small- x physics We investigate the role of unitarization effects in virtual photon-proton ( γ * p ) interactions at small x . The q q ¯ fluctuation of the initial photon is separated into a small distance and a large distance component and a model for the unitarization of each component is proposed. The Born approximation for the small size component is calculated using QCD perturbation theory. A Reggeon diagram technique is used in order to obtain a self-consistent scheme for both the total γ * p cross section and diffractive production. The model gives a good description of DESY HERA data in the small- x region, with a single Pomeron of intercept 1.2. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review D American Physical Society (APS)

Deep inelastic scattering data and the problem of saturation in small- x physics

Physical Review D , Volume 63 (5) – Mar 1, 2001
7 pages

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Publisher
American Physical Society (APS)
Copyright
Copyright © 2001 The American Physical Society
ISSN
1089-4918
DOI
10.1103/PhysRevD.63.054010
Publisher site
See Article on Publisher Site

Abstract

We investigate the role of unitarization effects in virtual photon-proton ( γ * p ) interactions at small x . The q q ¯ fluctuation of the initial photon is separated into a small distance and a large distance component and a model for the unitarization of each component is proposed. The Born approximation for the small size component is calculated using QCD perturbation theory. A Reggeon diagram technique is used in order to obtain a self-consistent scheme for both the total γ * p cross section and diffractive production. The model gives a good description of DESY HERA data in the small- x region, with a single Pomeron of intercept 1.2.

Journal

Physical Review DAmerican Physical Society (APS)

Published: Mar 1, 2001

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