Elsevier

Nuclear Physics B

Volume 25, Issue 2, 15 January 1971, Pages 333-341
Nuclear Physics B

Observation of coherent interference pattern between ϱ, ω decays

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Abstract

We report a high-statistics experiment measuring the structure of e+e mass spectrum from photoproduction of ϱ- and ω-mesons. At 5.1 GeV, based on 4000 events, analysis of the spectra yields a ratio of vector-meson-photon coupling constants γω2σϱNγϱ2σωN = 9.4−1.6+2.6 and a ϱ, ω production phase difference ϕωϱ = 41° ± 20°.

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