Decomposition of the QCD String into Dipoles and Unintegrated Gluon Distributions

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dc.creatorShoshi, A. I.
dc.creatorSteffen, F. D.
dc.creatorDosch, H. G.
dc.creatorPirner, H. J.
dc.date2002-07-23
dc.date.accessioned2026-07-07T10:48:32Z
dc.date.available2026-07-07T10:48:32Z
dc.descriptionWe present the perturbative and non-perturbative QCD structure of the dipole-dipole scattering amplitude in momentum space. The perturbative contribution is described by two-gluon exchange and the non-perturbative contribution by the stochastic vacuum model which leads to confinement of the quark and antiquark in the dipole via a string of color fields. This QCD string gives important non-perturbative contributions to high-energy reactions. A new structure different from the perturbative dipole factors is found in the string-string scattering amplitude. The string can be represented as an integral over stringless dipoles with a given dipole number density. This decomposition of the QCD string into dipoles allows us to calculate the unintegrated gluon distribution of hadrons and photons from the dipole-hadron and dipole-photon cross section via kT-factorization.
dc.description43 pages, 14 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0207287
dc.identifierhttp://arxiv.org/abs/hep-ph/0207287
dc.identifierPhys.Rev.D66:094019,2002
dc.identifierdoi:10.1103/PhysRevD.66.094019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183908
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.subjectNuclear Theory
dc.titleDecomposition of the QCD String into Dipoles and Unintegrated Gluon Distributions
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