Abstract

We show that the cross section of the Δ(1230) production in the γp+ π reaction at forward angles and with unpolarized photons can be described in terms of gauge invariant one pion t-channel exchange amplitudes. Proper description of the polarized cross sections requires, however, the inclusion of contributions from the baryon exchanges.

Details

Title
Resonances in forward π+π photoproduction on hydrogen
Author
Bibrzycki, Ł; Bydžovský, P; Kamiński, R; Szczepaniak, A P
Section
Light Systems
Publication year
2019
Publication date
2019
Publisher
EDP Sciences
ISSN
21016275
e-ISSN
2100014X
Source type
Conference Paper
Language of publication
English
ProQuest document ID
2285096785
Copyright
© 2019. This work is licensed under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and conditions, you may use this content in accordance with the terms of the License.