Eur. Phys. J. A (2004) 19: 61-65
https://doi.org/10.1140/epjad/s2004-03-010-4

Hadronic resonances

Impact of recent data on N* structure

Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260 USA

Received: 29 July 2003
Published online: 12 February 2004

Abstract

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.