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| Hauptseite > Publikationsdatenbank > Eta photoproduction in a combined analysis of pion- and photon-induced reactions |
| Hauptseite > Publikationsdatenbank > Eta photoproduction in a combined analysis of pion- and photon-induced reactions |
| Journal Article | FZJ-2015-06729 |
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2015
Springer
Berlin
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Please use a persistent id in citations: http://hdl.handle.net/2128/22794 doi:10.1140/epja/i2015-15070-7
Abstract: The ηN final state is isospin-selective and thus provides access to the spectrum of excited nucleons without being affected by excited Δ states. To this end, the world database on eta photoproduction off the proton up to a center-of-mass energy of E ∼ 2.3 GeV is analyzed, including data on differential cross sections, and single- and double-polarization observables. The resonance spectrum and its properties are determined in a combined analysis of eta and pion photoproduction off the proton together with the reactions πN → πN, ηN, KΛ and KΣ. For the analysis, the so-called Jülich coupled-channel framework is used, incorporating unitarity, analyticity, and effective three-body channels. Parameters tied to photoproduction and hadronic interactions are varied simultaneously. The influence of recent MAMI T and F asymmetry data on the eta photoproduction amplitude is discussed in detail.
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; Nationallizenz
; No Authors Fulltext ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection
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