Exclusive processes and the fundamental structure of hadrons

Journal Article · Tue Jan 20 00:00:00 EST 2015 · International Journal of Modern Physics A

DOI:https://doi.org/10.1142/S0217751X15300148· OSTI ID:1168439

Brodsky, Stanley J. ^[1]

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1. SLAC National Accelerator Lab., Menlo Park, CA (United States)

I review the historical development of QCD predictions for exclusive hadronic processes, beginning with constituent counting rules and the quark interchange mechanism, phenomena which gave early validation for the quark structure of hadrons. The subsequent development of pQCD factorization theorems for hard exclusive amplitudes and the development of evolution equations for the hadron distribution amplitudes provided a rigorous framework for calculating hadronic form factors and hard scattering exclusive scattering processes at high momentum transfer. I also give a brief introduction to the field of "light-front holography" and the insights it brings to quark confinement, the behavior of the QCD coupling in the nonperturbative domain, as well as hadron spectroscopy and the dynamics of exclusive processes.

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Grant/Contract Number: AC02-76SF00515
• OSTI ID: 1168439
• Report Number(s): SLAC-PUB-16162; TRN: US1500468
• Journal Information: International Journal of Modern Physics A, Vol. 30, Issue 02; ISSN 0217-751X
• Publisher: World Scientific
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HEPTH
light-front holography
hadrons
quarks