P11 Resonances with Dubna-Mainz-Taipei Dynamical Model for πN Scattering and Pion Electromagnetic Production

We present the results on P-11 resonances obtained with Dubna-Mainz-Taipei (DMT) dynamical model for pion-nucleon scattering and pion electromagnetic production. The extracted values agree well, in general, with PDG values. One pole is found corresponding to the Roper resonance and two more resonances are definitely needed in DMT model. We further find indication for a narrow P-11 resonance at around 1700 MeV with a width similar to 50 MeV in both pi N and pi p reactions.