Duality diagrams and the decays of the ψ and ψ′ |
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Authors: | G Cohen-Tannoudji G Girardi F Hayot U Maor A Morel |
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Institution: | Service de Physique Théorique, Centre d''Etudes Nucléaires de Saclay, BP. no. 2 - 91190 Gif-sur-Yvette, France |
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Abstract: | We apply duality diagrams to the ψ and ψ′ decays. We propose that the ψ → 3π decay is described by a Virasoro formula, and show that the low mass ππ suppression in ψ′ → ψ2π is a consequence of the threshold factor contained in the Pomeron-2π coupling. We stress the importance of the ψ and ψ′ decays for the study of heavy mesonic resonances. |
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