Photoproduction of positive pions on hydrogen at photon energies between 220 and 425 MeV

Fischer, G.; Fischer, H. M.; Heuel, M.; Holtey, G. von; Stümpfig, J.

doi:10.1016/0550-3213(70)90344-5

Cited by 36 publications

(2 citation statements)

References 20 publications

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“…The predictions are averaged over FIG. 5: Differential cross section of the reaction γp → π + n. Dashed (blue) line: fit 1; solid (red) line: fit 2; grey background: data points excluded from the fit; data: KO99 [146], AH04 [142] (MAMI), FI96 [147], WA62 [148], LI64 [149], BR95 [150], BU94 [151], FI70 [152], FI72 [153], BR00 [154] (MAMI), FU77 [155], KN63 [156], BE00 [157] (MAMI), FU71 [158], DA01 [159], AH06 [160] (MAMI), DU09 [134] (JLab). FIG.…”

Section: B Fit Resultsmentioning

confidence: 99%

Photocouplings at the pole from pion photoproduction

et al. 2014

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The reactions γp → π 0 p and γp → π + n are analyzed in a semi-phenomenological approach up to E ∼ 2.3 GeV. Fits to differential cross section and single and double polarization observables are performed. A good overall reproduction of the available photoproduction data is achieved. The Jülich2012 dynamical coupled-channel model -which describes elastic πN scattering and the world data base of the reactions πN → ηN , KΛ, and KΣ at the same time -is employed as the hadronic interaction in the final state. The framework guarantees analyticity and, thus, allows for a reliable extraction of resonance parameters in terms of poles and residues. In particular, the photocouplings at the pole can be extracted and are presented.

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