T. Feuster, U. Mosel
Published 1996-04-17, updated 1996-07-16Version 2
An effective Lagrangian calculation of pion photoproduction including all nucleon resonances up to $\sqrt s = 1.7$ GeV is presented. We compare our results to recent calculations and show the influence of different width parametrizations and offshell cutoffs on the photoproduction multipoles. We determine the electromagnetic couplings of the resonances from a new fit to the multipole data.
Comments: 20 pages, latex, 6 figures. Misprints corrected, text & 3 figures added
Journal: Nucl.Phys. A612 (1997) 375-390
Effective Lagrangian Approach to pion photoproduction from the nucleon
From Extraction of Nucleon Resonances to LQCD
The energies and residues of the nucleon resonances N(1535) and N(1650)
