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arXiv · hep-ph/0507184

Ambiguities in the calculation of leptonic decays of excited heavy quarkonium

J. P. Lansberg
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Abstract

We point out that the determination of the leptonic decay width of radially-excited quarkonia is strongly dependent on the position of the node typical of these excitations. We suggest that this feature could be related with the longstanding rho-pi puzzle.

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J. P. Lansberg. 2005-07-15. Ambiguities in the calculation of leptonic decays of excited heavy quarkonium. https://doi.org/10.1063/1.1961038

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