Exclusive processes in quantum chromodynamics: Evolution equations for hadronic wavefunctions and the form factors of mesons

Peter Lepage, G.; Brodsky, Stanley J.

doi:10.1016/0370-2693(79)90554-9

Exclusive processes in quantum chromodynamics: Evolution equations for hadronic wavefunctions and the form factors of mesons

Journal Article · Mon Nov 19 00:00:00 EST 1979 · Physics Letters B

DOI:https://doi.org/10.1016/0370-2693(79)90554-9· OSTI ID:1447331

Peter Lepage, G. ^[1]; Brodsky, Stanley J. ^[2]

Cornell Univ., Ithaca, NY (United States)
SLAC National Accelerator Lab., Menlo Park, CA (United States)

The predictions of quantum chromodynamics for meson form factors at large momentum transfer are given here. Evolution equations are derived which determine the structure of hadronic wavefunctions at short distances from their form at large distances. The eigenvalues of the evolution equations appear as exponents in anomalous logarithm corrections to the nominal power law of form factors determined by dimensional counting. The results lead to detailed tests of the spin and scaling structure of QCD at short distances. The predictions for the charged pion, kaon and rho form factors and the γ → π⁰ transition form factor of the photon are absolutely normalized at asymptotic momentum transfer.

View Accepted Manuscript (DOE)

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

Sponsoring Organization:: National Science Foundation (NSF); USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-76SF00515; AC03-76SF00515

OSTI ID:: 1447331

Report Number(s):: SLAC-PUB--2343

Journal Information:: Physics Letters B, Journal Name: Physics Letters B Journal Issue: 4 Vol. 87; ISSN 0370-2693

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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