Abstract
We show that pseudoscalar-meson production by two off-shell photons can be used to check the Brodsky-Lepage model for two-photon exclusive channels in QCD versus the vector-dominance model. The behavior of the form factor of the vertex is indeed quite different in either model.
- Received 25 May 1993
DOI:https://doi.org/10.1103/PhysRevD.48.R2974
©1993 American Physical Society