Details

Autor(en) / Beteiligte

• Thiel, A.
• Eberhardt, H.
• Lang, M.
• Afzal, F.
• Anisovich, A. V.
• Bantes, B.
• Bayadilov, D.
• Beck, R.
• Bichow, M.
• Brinkmann, K. -T.
• Böse, S.
• Crede, V.
• Dieterle, M.
• Dutz, H.
• Elsner, D.
• Ewald, R.
• Fornet-Ponse, K.
• Friedrich, St
• Frommberger, F.
• Funke, Ch
• Goertz, St
• Gottschall, M.
• Gridnev, A.
• Grüner, M.
• Gutz, E.
• Hammann, D.
• Hammann, Ch
• Hannappel, J.
• Hartmann, J.
• Hillert, W.
• Hoffmeister, Ph
• Honisch, Ch
• Jude, T.
• Kaiser, D.
• Kalinowsky, H.
• Kalischewski, F.
• Kammer, S.
• Keshelashvili, I.
• Klassen, P.
• Kleber, V.
• Klein, F.
• Klempt, E.
• Koop, K.
• Krusche, B.
• Kube, M.
• Lopatin, I.
• Mahlberg, Ph
• Makonyi, K.
• Metag, V.
• Meyer, W.
• Müller, J.
• Müllers, J.
• Nanova, M.
• Nikonov, V.
• Piontek, D.
• Reeve, S.
• Reicherz, G.
• Runkel, S.
• Sarantsev, A.
• Schmidt, Ch
• Schmieden, H.
• Seifen, T.
• Sokhoyan, V.
• Spieker, K.
• Thoma, U.
• Urban, M.
• van Pee, H.
• Walther, D.
• Wendel, Ch
• Wilson, A.
• Winnebeck, A.
• Witthauer, L.

Titel

Double-polarization observable G in neutral-pion photoproduction off the proton

Ist Teil von

• The European physical journal. A, Hadrons and nuclei, 2017, Vol.53 (1), p.1-12, Article 8

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2017

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• . This paper reports on a measurement of the double-polarization observable G in π 0 photoproduction off the proton using the CBELSA/TAPS experiment at the ELSA accelerator in Bonn. The observable G is determined from reactions of linearly polarized photons with longitudinally polarized protons. The polarized photons are produced by bremsstrahlung off a diamond radiator of well-defined orientation. A frozen spin butanol target provides the polarized protons. The data cover the photon energy range from 617 to 1325 MeV and a wide angular range. The experimental results for G are compared to predictions by the Bonn-Gatchina (BnGa), Jülich-Bonn (JüBo), MAID and SAID partial wave analyses. Implications of the new data for the pion photoproduction multipoles are discussed.