Universal phase between strong and eletromagnetic interactions

Details Universal phase between strong and eletromagnetic interactions Universal phase between strong and eletromagnetic interactions

2004-10-02

arxiv.org/abs/hep-ph/0410028v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 5 figures; talk at 32nd International Conference on High Energy Physics (ICHEP'04), August 16-22, 2004, Beijing, Chin

Scientific paper

It is shown that the experimental data of psi(3686) and psi(3770) are consistent with a -90 degree phase between the strong and eletromagnetic decay amplitudes. The e+ e- -> rho-pi measured at psi(3770) is also consistent with the branching ratio predicted by Rosner's scenario on rho-pi puzzle in charmonium physics. This scenario leads to a possible large charmless branching ratio in psi(3770) decays.

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