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  • The N(1520) 3/2- helicity amplitudes from an energy-independent multipole analysis based on new polarization data on photoproduction of neutral pions
    Hartmann, J; Dutz, H; Anisovich, A V; Bayadilov, D; Beck, R; Becker, M; Beloglazov, Y; Berlin, A; Bichow, M; Böse, S; K -Th Brinkmann; Crede, V; Dieterle, M; Eberhardt, H; Elsner, D; net-Ponse, K; Friedrich, St; Frommberger, F; Funke, Ch; Gottschall, M; Gridnev, A; Grüner, M; Gutz, E; Hammann, Ch; Hannappel, J; Hannen, V; Herick, J; Hillert, W; Hoffmeister, Ph; Honisch, Ch; Jahn, O; Jude, T; Käser, A; Kaiser, D; Kalinowsky, H; Kalischewski, F; Klassen, P; Keshelashvili, I; Klein, F; Klempt, E; Koop, K; Krusche, B; Kube, M; Lang, M; Lopatin, I; Makonyi, K; Messi, F; Metag, V; Meyer, W; Müller, J; Nanova, M; Nikonov, V; Novinski, D; Novotny, R; Piontek, D; Rosenbaum, C; Roth, B; Reicherz, G; Rostomyan, T; Sarantsev, A; Schmidt, Ch; Schmieden, H; Schmitz, R; Seifen, T; Sokhoyan, V; Thämer, Ph; Thiel, A; Thoma, U; Urban, M; H van Pee; Walther, D; Wendel, Ch; Wiedner, U; Wilson, A; Winnebeck, A; Witthauer, L; Wunderlich, Y

    arXiv.org, 07/2014
    Paper, Journal Article

    New data on the polarization observables T, P, and H for the reaction \(\gamma p \to p\pi^0\) are reported. The results are extracted from azimuthal asymmetries when a transversely polarized butanol target and a linearly polarized photon beam are used. The data were taken at the Bonn electron stretcher accelerator ELSA using the CBELSA/TAPS detector. These and earlier data are used to perform a truncated energy-independent partial wave analysis in sliced-energy bins. This energy-independent analysis is compared to the results from energy-dependent partial wave analyses.

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