Measuring the phase between strong and EM J/Psi decay amplitudes

Details Measuring the phase between strong and EM J/Psi decay amplitudes Measuring the phase between strong and EM J/Psi decay amplitudes

2011-10-26

arxiv.org/abs/1110.5845v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 3 figures, talk given at HADRON2011 (XIV International Conference on Hadron Spectroscopy), 13-17 June 2011, Munich, G

Scientific paper

A c.m. energy scan below the J/Psi peak foreseen in the next future at BESIII can probe the existence in all the exclusive possible final states of an interference pattern between the resonant e+e- => J/Psi => hadrons and non-resonant e+e+ => hadrons amplitudes. The relative phase of the strong J/Psi decay amplitude with respect to the electromagnetic one can hence be accessed for the first time in a model independent way.

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