On the determination of $\Theta^+$ quantum numbers and other topics of   exotic baryons
  In this talk I look into three different topics, addressing first a method to determine the quantum numbers of the $\Theta^+$, then exploiting the possibility that the $\Theta^+$ is a bound state of $K \pi N$ and in the third place I present results on a new resonant exotic baryonic state which appears as dynamically generated by the Weinberg Tomozawa $\Delta K$ interaction. 
E. Oset, T. Hyodo, A. Hosaka, F. J. Llanes-Estrada, V. Mateu, S.   Sarkar and M.J. Vicente Vacas