PION AND PHOTON-INDUCED REACTIONS ON THE NUCLEON IN A UNITARY MODEL

Authors
SCHOLTEN O KORCHIN AY PASCALUTSA V VANNECK D
Citation
O. Scholten et al., PION AND PHOTON-INDUCED REACTIONS ON THE NUCLEON IN A UNITARY MODEL, Physics letters. Section B, 384(1-4), 1996, pp. 13-19
Citations number
22
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
384
Issue
1-4
Year of publication
1996
Pages
13 - 19
Database
ISI
SICI code
0370-2693(1996)384:1-4<13:PAPROT>2.0.ZU;2-Y
Abstract
We present a relativistic calculation of pion scattering, pion photopr oduction and Compton scattering on the nucleon in the energy region of the Delta-resonance (upto 450 MeV photon lab energy), in a unified fr amework which obeys the unitarity constraint. It is found that the rec ent data on the cross section for nucleon Compton scattering determine accurately the parameters of the electromagnetic nucleon-Delta coupli ng. The pion-photoproduction partial-wave amplitudes, calculated with parameters fitted to the pion-nucleon and Compton scattering, agree we ll with the recent Amdt analysis.