Hard Exclusive and Processes in QCD | Zendy

Stanley J. Brodsky | Zendy

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Hard Exclusive and Processes in QCD

Author(s) -

Stanley J. Brodsky

Publication year - 1999

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/10523

Subject(s) - physics , quantum chromodynamics , light cone , particle physics , hadron , pion , meson , twist , amplitude , hera , lattice qcd , formalism (music) , vector meson , wave function , distribution function , nuclear physics , quantum mechanics , geometry , art , musical , mathematics , visual arts

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

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