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VOLUME 72 (2000) | ISSUE 1 | PAGE 3
Relative phase between the J/ψ→ρη and ωη amplitudes
PACS: 11.30.Hv, 13.25.Gv, 13.40.Hq, 14.40.Gx
It is shown that the study of the ω — p° interference pattern in the J/ψ —> (p° +ω)η —> —>· π+π~η decay provides evidence for the large (nearly 90°) relative phase between the one-photon and the three-gluon decay amplitudes.