Hard Exclusive and Diffractive Processes in QCD

1999/08/24 by S. J. Brodsky, Brodsky, S. J.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9908456

Presented at a workshop on Exclusive and Semiexclusive Processes at High Momentum Transfer, Jefferson Laboratory, 20-22 May 1999, title changed

arxiv created 1999/09/01 · arxiv updated 2009/11/30

Abstract

Exclusive and semi-exclusive processes, the diffractive dissociation of hadrons into jets, and hard diffractive processes such as vector meson leptoproduction provide new testing grounds for QCD and essential information on the structure of light-cone wavefunctions of hadrons, particularly the pion distribution amplitude. I review the basic features of the leading-twist QCD predictions and the problems and challenges of studying QCD at the amplitude level. The application of the light-cone formalism to the exclusive semi-leptonic decay of heavy hadrons is also discussed.

Related

• QCD Processes at the Amplitude Level
• QCD Phenomena and the Light-Cone Wavefunction of Hadrons
• Diffraction Dissociation in QCD and Light-Cone Wavefunctions
• Inclusive Heavy Hadron Decays and Light-Cone Dynamics
• The Light-Cone Fock State Expansion and Hadron Physics Phenomenology