Saturation in DIS at low x
نویسندگان
چکیده
منابع مشابه
Saturation Effects in Dis at Low X *
We review basic ideas related to saturation of parton densities at small value of the Bjorken variable x. A special emphasis is put on interpreting the results from the ep deep inelastic scattering experiments at HERA.
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We present various aspects of the saturation model which provides good description of inclusive and diffractive DIS at small x. The model uses parton saturation ideas to take into account unitarity requirements. A new scaling predicted by the model in the small x domain is successfully confronted with the data.
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Consistency of the previously suggested color-dipole representation of deepinelastic scattering (DIS) and vector-meson production at low x with DGLAP evolution allows one to predict the exponent of the W 2 dependence of the saturation scale, Λsat(W ) ∼ (W )2 . One finds C 2 = 0.27 in agreement with the model-independent analysis of the experimental data from HERA on deepinelastic electron scatt...
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In this talk the results of the analytical and numerical analysis of the nonlinear Balitsky-Kovchegov equation are presented. The characteristic BFKL diffusion into infrared regime is suppressed by the generation of the saturation scale Qs. We identify the scaling and linear regimes for the solution. We also study the impact of subleading corrections onto the nonlinear evolution.
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This talk is a rather sceptical review of our knowledge and understanding of deep inelastic scattering at low x ( high energy). We show that the well known success of the DGLAP evolution equations in describing of experimental HERA data brought more problems and puzzles than answers. We advocate that more systematic theoretical and experimental investigations of the nonperturbative QCD are need...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2005
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2005.02.097