QCD Processes at the Amplitude Level

Technical Report · Mon Nov 15 00:00:00 EST 1999

DOI:https://doi.org/10.2172/15093· OSTI ID:15093

Brodsky, Stanley J ^[1]

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1. SLAC

Some of the most difficult theoretical challenges of QCD occur at the interface of the perturbative and nonperturbative regimes. 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.

• Research Organization: Stanford Linear Accelerator Center, Menlo Park, CA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 15093
• Report Number(s): SLAC-PUB-8295
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
DISSOCIATION
DISTRIBUTION
ENERGY
HADRONS
LIGHT CONE
PIONS
QUANTUM CHROMODYNAMICS
TESTING
VECTOR MESONS