The scalar mesons in multi-channel ππ scattering and decays of the ψ and Υ families
Surovtsev, Yurii S. · Bydzovsky, Petr · Gutsche, Thomas · Kaminski, Robert · Lyubovitskij, Valery E. · Nagy, Miroslav
الأصل · EN
The f₀ mesons are studied in a combined analysis of data on the isoscalar S-wave processes ππ→ππ,KK,ηη and on decays J/ψ→ϕ(ππ, KK), ψ(2S)→ J/ψ(ππ), and Υ(2S)→Υ(1S)ππ from the Argus, Crystal Ball, CLEO, CUSB, DM2, Mark II, Mark III, and BES II collaborations. The method of analysis, based on analyticity and unitarity and using an uniformization procedure, is set forth with some details. Some spectroscopic implications from results of the analysis are discussed.
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