Abstract
\({\bar{K}}\)-nucleon interactions near threshold are investigated in the framework of coupled-channels dynamics based on the next-to-leading order chiral SU(3) meson-baryon effective Lagrangian. Accurate constraints are now provided by new high-precision kaonic hydrogen measurements. This constraint permits an updated analysis of the complex \({\bar{K}N}\) and πΣ coupled-channels amplitudes.
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