The Bonn-Gatchina PWA: Search for New States and Study of Resonance Properties

COFFEE_KLATCH · Invited

Abstract

The latest combined analysis of the meson photo-production data and data from pion-induced reactions is presented. The data base was extended by including the latest double polarization data on pion photoproduction off proton and data on the $\eta$, $\pi^0$ and $\pi^-$ photoproduction off neutron. The analysis is done in the framework of the old K-matrix approach and new N/D-based method which fully satisfies unitarity and analyticity conditions. The property of observed resonances are presented and different interpretations of the spectrum are discussed.

Authors

  • Andrey Sarantsev

    HISKP Bonn University \& PNPI, Gatchina