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Showing 1 to 4 of 4 for “"virtual compton amplitude"”.
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Some Aspects of Deeply Virtual Compton Scattering
<p>We consider different aspects of the virtual Compton amplitude in QCD on two examples: small-x physics accessible in the Regge regime and twist-3 approximation in the description of DVCS through the general parton distributions. Using this model, we give an estimate for the cross section of …
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Field Theoretic Models of Deep Inelastic Lepton-Nucleon Scattering
… within the framework of ladder models of the virtual Compton amplitude in the limit |q<sup>2</sup>|→ ∞ with w=2q·p/|q<sup>2</sup>| large and fixed. (q is the electron four-momentum transfer and p the target nucleon momentum.) The leading logarithmic behavior of the ladder diagrams is obtained …
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Resonance contribution to electromagnetic structure functions
… due to direct channel resonances in the virtual Compton amplitude is discussed. After a phenomenological discussion, based on the work of Bloom and Gilman, of resonance production in inelastic electroproduction, the single resonance contribution to the pion and proton structure functions …
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Virtual Compton Scattering Processes in Quantum Chromodynamics
<p>Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive meson electroproduction processes require a generalization of usual Parton distributions for the case when long-distance information is accumulated in nonforward matrix elements [special characters omitted] …