Pion and photon induced reactions on the nucleon in a unitary model
arXiv:nucl-th/9604014 · doi:10.1016/0370-2693(96)00825-8
Abstract
We present a relativistic calculation of pion scattering, pion photoproduction and Compton scattering on the nucleon in the energy region of the \Del-resonance (upto 450 MeV photon lab energy), in a unified framework which obeys the unitarity constraint. It is found that the recent data on the cross section for nucleon Compton scattering determine accurately the parameters of the electromagnetic nucleon--\Del\ coupling. The calculated pion-photoproduction partial-wave amplitudes agree well with the recent Arndt analysis.
8 pages, postscript figures available at http://www.kvi.nl/disk$1/theolib/www/articles.html