Improved perturbative QCD analysis of the pion-photon transition form factor
- College de France, Institut National de Physique Nucleaire et de Physique des Particules, Centre National de la Recherche Scientifique, Laboratoire de Physique Corpusculaire, 11, place Marcelin-Berthelot, F-75231 Paris Cedex 05 (France)
We reexamine the transition form factor in {pi}{sup 0} coupling to {gamma}{sup *}{gamma}{sup *} in the framework of a perturbative QCD approach based on the modified factorization formula. Sudakov suppression is less important here than in other exclusive channels and can be used to check the hard-scattering approach of Brodsky and Lepage in this process.
- OSTI ID:
- 115954
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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