Journal
PHYSICS LETTERS B
Volume 582, Issue 3-4, Pages 211-221Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2003.12.050
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A remarkable consequence of the AdS/CFT correspondence is the nonperturbative derivation of dimensional counting rules for hard scattering processes. Using string/gauge duality we derive the QCD power behavior of light-front Fock-state hadronic wavefunctions for hard scattering in the large-r region of the Ads space from the conformal isometries which determine the scaling of string states as we approach the boundary from the interior of Ads space. The nonperturbative scaling results are obtained for spin-zero and spin-1/2 hadrons and are extended to include the orbital angular momentum dependence of the constituents in the light-front Fock-expansion. The correspondence with string states is considered for hadronic states of arbitrary orbital angular momentum for a given hadron of spin less than or equal to 2. We examine the implications of the color configuration of hadronic Fock-states for the QCD structure of scattering amplitudes at large N-C. Quark interchange amplitudes emerge as the dominant large NC scattering mechanisms for conformal QCD. (C) 2004 Published by Elsevier B.V.
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