منابع مشابه
SMALL x, SATURATION AND THE HIGH ENERGY LIMIT OF QCD
The high energy limit of QCD is controlled by the small-x part of a hadron wavefunction. We argue that this part is universal to all hadrons and is composed of a new form of matter: a Colored Glass Condensate. This matter is weakly interacting at very small x, but is nonperturbative because of the highly occupied boson states which compose the condensate. Such a matter might be studied in high ...
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Recent progress in understanding general properties of high energy scattering near the unitarity limit, where high density gluon components of the wavefunction are dominant, is reviewed. The similarity of the QCD problem and that of reaction-diffusion processes in statistical physics is emphasized. The energy dependence of the saturation momentum and the status of geometric scaling are discussed.
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We review a consistent description of the fusion and saturation of partons in the Lorentz-contracted ultrarelativistic nuclei in terms of a nuclear attenuation of color dipole states of the photon and collective Weizsäcker-Williams (WW) gluon structure function of a nucleus. Diffractive DIS provides a basis for the definition of the WW nuclear glue. The point that all observables for DIS off nu...
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These lectures stress the theoretical elements that underlie a wide range of phenomenological studies of high-energy QCD, which include both soft and hard processes. After a brief introduction to the basics of QCD, various aspects of QCD-based phenomenology are covered: colour transparency, hadronization of colour charges, Regge phenomenology, parton model, Bjorken scaling and its violation, DG...
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After more than 25 years of considerable theoretical and experimental efforts, it appears that QCD is the theory of strong interactions. Ideally, in high-energy QCD one needs one single piece of information from the experiments: the value of αs. Starting from that measured value, every observable can be computed from first principles. In practice this is not feasible, since we don’t know how to...
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ژورنال
عنوان ژورنال: Brazilian Journal of Physics
سال: 2006
ISSN: 0103-9733
DOI: 10.1590/s0103-97332006000700013