Impact of recent data on N* structure
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260 USA
Published online: 12 February 2004
Many modern experiments are posed with the issue of physics interpretation of their data when the theory is complicated. Certainly, experiments studying N* resonances are in this category. This short paper presents examples of interpretation made by inspection of the data, Breit-Wigner analyses, and coupled channels analysis. There are significant advantages to all three, but only a coupled channels analysis can provide the checks needed for a complete analysis. Examples from the S11 and P13 partial waves are discussed.
PACS: codes. – 13.30.-a - Baryon decays / codes. – 13.60.Le - Meson production in electromagnetic reactions / codes. – 13.20.Gk - Baryon resonances with S=0
© Società Italiana di Fisica, Springer-Verlag, 2004