On lower scalar quark-antiquark nonets |
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| Authors: | YuS Surovtsev D Krupa M Nagy |
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| Institution: | (1) Bogoliubov Laboratory of Theoretical Physics, JINR, Dubna, 141 980, Russia;(2) Institute of Physics, Slovak Acad. Sci., Dúbravská cesta 9, 845 11 Bratislava, Slovakia |
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| Abstract: | Two-and three-channel analyses of experimental data on the coupled processes ππ → ππ, k, ηη in the channel with I
G
J
PC
= 0+0++ are carried out and discussed. In a model-independent approach, confirmation of the σ-meson below 1GeV and definite indications
of the QCD nature of other f0 resonances are obtained. An assignment of the scalar mesons below 1.9 GeV to lower nonets is proposed. |
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| Keywords: | model-independent multichannel analysis analyticity unitarity scalar resonances sigma-meson scalar nonets |
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