Helicity dependence of the gamma p → N pi channels and multipole analysis in the Delta region
The European physical journal : A. Bd. 21. H. 2. Berlin: Springer 2004 S. 323 - 333
Erscheinungsjahr: 2004
ISBN/ISSN: 1434-6001 ; 1434-601X
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1140/epja/i2003-10216-x
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Inhaltszusammenfassung
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 propertie...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.» weiterlesen» einklappen
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Physik
