Helicity dependence of the gamma p -> N pi channels and multipole analysis in the Delta region
Författare
Summary, in English
A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both gammap --> Npi channels in the Delta region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4pi detection system, a circularly polarized photon beam, and a longitudinally polarized frozen-spin target. These data are included in the database to perform a multipole analysis to determine the properties of the Delta(1232)-resonance. For the resonant Delta(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations.
Avdelning/ar
Publiceringsår
2004
Språk
Engelska
Sidor
323-333
Publikation/Tidskrift/Serie
European Physical Journal A. Hadrons and Nuclei
Volym
21
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
Springer
Ämne
- Physical Sciences
- Natural Sciences
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 1434-6001