The radiative decay of the $\Lambda (1405)$ and its two-pole structure

L. S. Geng, E. Oset, M. Doring

We evaluate theoretically the radiative decay widths into $\gamma \Lambda$ and $\gamma {\Sigma }^0$ of the two poles of the $\Lambda (1405)$ found in chiral unitary theories and we find quite different results for…