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Analysis of K\pi-scattering phase shift and existence of \kappa(900)-particle
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Recently we have shown an evidence for existence of \sigma-particle in the previous works; where the \pi\pi S-wave phase shift is reanalyzed, by introducing a repulsive background suggested by the chiral symmetry, and by applying a new method of Interfering Breit-Wigner Amplitudes. In this work we also show, reanalyzing the K\pi S-wave phase shift from a similar standpoint, an evidence for existence of \kappa(900), possibly to be a member of \sigma-nonet.
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Cited by 1 Pith paper
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Semileptonic $D_{e4}$ decays: hadronic dynamics and the determination of $|V_{cs}|$
Using a K*(892)+D*(2010) pole model fitted to BESIII data, the authors show the D* pole can mimic the S-wave contribution previously attributed to the kappa scalar meson in D_{e4} decays.
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