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The phase of the sigma -> pi-pi amplitude in J/Psi -> omega-pi-pi

D. V. Bugg
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Abstract

The phase variation of the sigma -> pi-pi amplitude is accurately determined as a function of mass from BES II data for J/Psi -> omega-pi-pi. The determination arises from interference with the strong b1(1235)-pi amplitude. The observed phase variation agrees within errors with that in pi-pi elastic scattering.

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D. V. Bugg. 2004-11-11. The phase of the sigma -> pi-pi amplitude in J/Psi -> omega-pi-pi. https://doi.org/10.1140/epjc%2Fs2004-02031-0

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