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The bar{K} N rightarrow K Xi reaction in coupled channel chiral models up to next-to-leading order
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The bar{K} N rightarrow K Xi reaction in coupled channel chiral models up to next-to-leading order
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The meson-baryon interaction in s-wave in the strangeness S=-1 sector has been studied, employing a chiral SU(3) Lagrangian up to next-to-leading order (NLO) and implementing unitarization in coupled channels. The parameters of the Lagrangian have been fitted to a large set of experimental data in different two-body channels, paying special attention to the $\bar{K} N \rightarrow K \Xi$ reaction, which is particularly sensitive to the NLO terms. With the aim of improving the model in the $K\Xi$ production channels, effects of the high spin hyperon resonances $\Sigma(2030)$ and $\Sigma(2250)$ have been taken into account phenomenologically.
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Cited by 1 Pith paper
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A possible $\Sigma^*$ or $\Lambda^*$ resonance with $J^P=3/2^-$ in $K^-p\to K\Xi$ scattering
A J^P=3/2- hyperon resonance at ~1.9 GeV is added to an effective Lagrangian fit of K- p to K Xi cross sections, with the Lambda* assignment preferred over Sigma* by polarization predictions.
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