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Vector-dominance model, partial conservation of the axial-vector current, and the decoupling of πρω

par Mannheim, Philippe
Référence Physical Review D - Particles, Fields, Gravitation and Cosmology, 4, 9, page (2936-2940)
Publication Publié, 1971

Article révisé par les pairs

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Résumé :

We show that partial conservation of the axial-vector current and vector dominance together imply that gπρω=0. We discuss the relevance of this result to the failure of vector dominance in polarized photoproduction of pions. We also provide a simple interpretation of the ρ-meson mass shift in photoproduction experiments based on unitarity. © 1971 The American Physical Society.