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arXiv · hep-ph/0306196

Mesons of the $f_0$-family in the processes $ππ\toππ,K\bar{K},ηη$ up to 1.9 GeV

Yu. S. Surovtsev·D. Krupa·M. Nagy
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Abstract

In combined 2- and 3-channel analyses of experimental data on the coupled processes $ππ\toππ,K\bar{K},ηη$ in the channel with $I^GJ^{PC}=0^+0^{++}$, various scenarios of these reactions(with different numbers of resonances) are considered. In a model-independent approach, confirmation of the $σ$-meson below 1 GeV and definite indications of the QCD nature of other $f_0$ resonances are obtained. The conclusion on the linear realization of chiral symmetry is drawn.

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Yu. S. Surovtsev, D. Krupa, M. Nagy. 2003-06-21. Mesons of the $f_0$-family in the processes $ππ\toππ,K\bar{K},ηη$ up to 1.9 GeV. https://arxiv.org/abs/hep-ph/0306196

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