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Di-pion emission in heavy quarkonia decays

✍ Scribed by Yu. A. Simonov


Book ID
110168712
Publisher
SP MAIK Nauka/Interperiodica
Year
2008
Tongue
English
Weight
159 KB
Volume
87
Category
Article
ISSN
0021-3640

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The role of pion rescattering in ππ decay of radially excited heavy quarkonia modeled in terms of a Qππ 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