What could be learnt from Positronium for Quarkonium?

Details What could be learnt from Positronium for Quarkonium? What could be learnt from Positronium for Quarkonium?

2003-08-07

arxiv.org/abs/hep-ph/0308082v1

Int.J.Mod.Phys. A19 (2004) 3905-3918

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 10 figures. Talk given at the ETH Workshop on Positronium Physics, May 30-31, 2003, Zurich, Switzerland

Scientific paper

10.1142/S0217751X04020166

In order to fulfill Low's theorem requirements, a new lowest order basis for
bound state decay computations is proposed, in which the binding energy is
treated non-perturbatively. The properties of the method are sketched by
reviewing standard positronium decay processes. Then, it is shown how applying
the method to quarkonia sheds new light on some longstanding puzzles.

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