Abstract
Dependence of the K − d scattering length on the different models of \({\bar{K}N - \pi \Sigma}\) interaction describing Λ(1405) resonance in terms of one or two poles is investigated. The \({\bar{K}NN - \pi \Sigma N}\) system is described by coupled-channel Faddeev equations in AGS form. The two-body \({\bar{K}N - \pi \Sigma}\) interaction models reproduce all existing experimental data on K − p scattering and K − p atom level shift. The comparison with several approximations, commonly used for such calculations, is done.
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The work was supported by the Czech GA AVCR grant KJB100480801.
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Shevchenko, N.V. Coupled-Channel Faddeev Calculations of K − d Scattering Length. Few-Body Syst 50, 335–338 (2011). https://doi.org/10.1007/s00601-010-0140-6
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DOI: https://doi.org/10.1007/s00601-010-0140-6