Study of $\Lambda(1405)$ in photoproduction of $K^*$
  We investigate the photoproduction of $K^*$ vector meson for the study of the $\Lambda(1405)$ resonance. The invariant mass distribution of $\pi\Sigma$ shows a different shape from the nominal one, peaking at 1420 MeV. This is considered as a consequence of the double pole structure of $\Lambda(1405)$, predicted in the chiral unitary model. Combined with other reactions, such as $\pi^- p \to K^0 \pi\Sigma$, experimental confirmation of this fact will reveal a novel structure of the $\Lambda(1405)$ state. 
T. Hyodo (1), A. Hosaka (1), M. J. Vicente Vacas (2), E. Oset (2) ((1)   RCNP, Osaka Univ., (2) IFIC, Valencia Univ.)