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- W2104723363 abstract "The $eta N$ final state is isospin-selective and thus provides access to the spectrum of excited nucleons without being affected by excited $Delta$ states. To this end, the world database on eta photoproduction off the proton up to a center-of-mass energy of $Esim 2.3$ 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 $pi Nto pi N$, $eta N$, $KLambda$ and $KSigma$. For the analysis, the so-called Julich 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." @default.
- W2104723363 created "2016-06-24" @default.
- W2104723363 creator A5003809688 @default.
- W2104723363 creator A5014150790 @default.
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- W2104723363 creator A5064631806 @default.
- W2104723363 creator A5066567020 @default.
- W2104723363 creator A5078188637 @default.
- W2104723363 date "2015-06-01" @default.
- W2104723363 modified "2023-10-17" @default.
- W2104723363 title "Eta photoproduction in a combined analysis of pion- and photon-induced reactions" @default.
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- W2104723363 doi "https://doi.org/10.1140/epja/i2015-15070-7" @default.
- W2104723363 hasPublicationYear "2015" @default.