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Scalar meson spectroscopy: achievements and traps

Abstract : Interactions in three coupled channels: pi-pi, K-anti K and sigma-sigma have been investigated in a wide two-pion effective mass region from the pi-pi threshold up to 1600 MeV. Analytical structure of amplitudes in all channels has been studied. It was shown that its knowledge is necessary to understand spectrum of scalar mesons and their nature.
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http://hal.in2p3.fr/in2p3-00193701
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Submitted on : Tuesday, December 4, 2007 - 2:17:22 PM
Last modification on : Friday, April 10, 2020 - 5:30:18 PM

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R. Kaminski, L. Lesniak, B. Loiseau. Scalar meson spectroscopy: achievements and traps. YITP Workshop on Possible Existence of the sigma meson and it Implications to Hadron Physics (sigma-meson 2000), Jun 2000, Kyoto, Japan. pp.109-114. ⟨in2p3-00193701⟩

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