QCD CORRECTIONS TO MESON - PHOTON TRANSITION FORM-FACTORS

Braaten, Eric

doi:10.1103/PhysRevD.28.524

QCD CORRECTIONS TO MESON - PHOTON TRANSITION FORM-FACTORS

Eric Braaten
(
- Florida U.
)

1982

31 pages

Published in:

Phys.Rev.D 28 (1983) 524

DOI:

10.1103/PhysRevD.28.524

Report number:

UFTP-82-11

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Abstract: (APS)

We calculate corrections to the hard-scattering amplitude for meson-photon transition form factors using dimensional regularization. Special attention is paid to the pseudoscalar case in which there is an ambiguity associated with γ5. We resolve this ambiguity by appealing to axial-vector Ward identities and check the answer by using a four-dimensional regularization.

QUANTUM CHROMODYNAMICS: PERTURBATION THEORY
MODEL: HARD SCATTERING
HARD SCATTERING: MODEL
RADIATIVE CORRECTION
MESON: PHOTOPRODUCTION
PHOTOPRODUCTION: MESON
FORM FACTOR: TRANSITION
TRANSITION: FORM FACTOR
COUPLING CONSTANT: STRONG INTERACTION
STRONG INTERACTION: COUPLING CONSTANT

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