Geometric scaling for the total gamma^* p cross section in the low x region

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dc.creatorStasto, A. M.
dc.creatorGolec-Biernat, K.
dc.creatorKwiecinski, J.
dc.date2000-07-18
dc.date2000-11-03
dc.date.accessioned2026-07-07T10:52:05Z
dc.date.available2026-07-07T10:52:05Z
dc.descriptionWe observe that the saturation model of deep inelastic scattering, which successfully describes inclusive and diffractive data at small x, predicts a geometric scaling of the total gamma^* p cross section in the region of small Bjorken variable x. The geometric scaling in this case means that the cross section is a function of only one dimensionless variable tau = Q^2 R_0^2(x), where the function R_0(x) (called saturation radius) decreases with decreasing x. We show that the experimental data from HERA in the region x<0.01 confirm the expectations of this scaling over a very broad region of Q^2. We suggest that the geometric scaling is more general than the saturation model.
dc.description12 pages, 4 figures, LaTeX, revised version to appear in journal. 1 new figure, several new references added, extended discussion on saturation radius
dc.identifierhttps://arxiv.org/abs/hep-ph/0007192
dc.identifierhttp://arxiv.org/abs/hep-ph/0007192
dc.identifierPhys.Rev.Lett.86:596-599,2001
dc.identifierdoi:10.1103/PhysRevLett.86.596
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/185041
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGeometric scaling for the total gamma^* p cross section in the low x region
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