Radiative decay of $K^-p$ system and photoproduction of $Λ(1405)$
The properties of the $Λ(1405)$ resonance have been investigated from radiative decay of $K^- p\to Yγ$ and photoproduction $γp\to K^+Λ(1405)$ within the framework of the isobar model. For a consistent result with recently measured branching ratios, the axial vector meson $K_1(1270)$ is taken into account. Strong and electromagnetic coupling constants of $Λ(1405)$ are extracted from these branching ratios and are applied to the analysis of $K^+Λ(1405)$ photoproduction. The total and differential cross sections are predicted.
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