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Conference paper

New perspectives for QCD: near-conformal QCD and the novel effects of final-state interactions

Staneley J. Brodsky ; Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309, USA


Full text: english pdf 374 Kb

page 91-114

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Abstract

The effective QCD charge extracted from t decay is remarkably constant at small momenta, implying the near-conformal behavior of hadronic interactions at small momentum transfer. The correspondence of large NC supergravity theory in higher-dimensional anti-de Sitter spaces with gauge theory in physical space-time also has interesting implications for hadron phenomenology in the conformal limit, such as constituent counting rules for hard exclusive processes. The utility of light-front quantization and light-front Fock wavefunctions for analyzing such phenomena and representing the dynamics of QCD bound states is reviewed. The novel effects of initial- and final-state interactions in hard QCD inclusive processes, including Bjorken-scaling single-spin asymmetries and the leading-twist diffractive and shadowing contributions to deep inelastic lepton-proton scattering are also discussed.

Keywords

hadronic interactions; deep inelastic lepton-proton scattering; supergravity theory; gauge theory; QCD; single-spin asymmetries

Hrčak ID:

305611

URI

https://hrcak.srce.hr/305611

Publication date:

1.3.2004.

Article data in other languages: croatian

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