Pion rescattering in two-pion decay of h
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T.A. LΓ€hde; D.O. Riska
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Article
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2002
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Elsevier Science
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English
β 310 KB
The role of pion rescattering in ΟΟ decay of radially excited heavy quarkonia modeled in terms of a QΟΟ coupling, is investigated within the framework of the covariant Blankenbecler-Sugar equation. The effects of pion rescattering (or pion exchange) are shown to be large, unless the coupling of the