Proton-proton bremsstrahlung below and above pion threshold: Influence of the {Delta} isobar
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602 (United States)
The proton-proton bremsstrahlung is investigated within a coupled-channel model with the {Delta} degree of freedom. The model is consistent with the {ital NN} scattering up to 1 GeV and the {gamma}{ital N}{Delta} vertex determined in the study of pion photoproduction reaction. It is found that the {Delta} excitation can significantly improve the agreements with the {ital pp}{r_arrow}{ital pp}{gamma} at {ital E}{sub lab}=280 MeV. Predictions at {ital E}{sub lab}=550 and 800 MeV are presented for future experimental tests.
- OSTI ID:
- 44671
- Journal Information:
- Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 51; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- English
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