Helicity dependence of the gamma p -> N pi channels and multipole analysis in the Delta region

A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both gammap --> Npi channels in the Delta region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4pi detection system, a circularly polarized photon beam, and a longitudinally polarized frozen-spin target. These data are included in the database to perform a multipole analysis to determine the properties of the Delta(1232)-resonance. For the resonant Delta(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations.

Altieri, S (author)
Annand, JRM (author)
Anton, G (author)
Arends, HJ (author)
Aulenbacher, K (author)
Beck, R (author)
Bradtke, C (author)
Braghieri, A (author)
Degrande, N (author)
d'Hose, N (author)
Drechsel, D (author)
Dutz, H (author)
Goertz, S (author)
Grabmayr, P (author)
Hansen, KurtLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)maxl-kha (author)
Harmsen, J (author)
von Harrach, D (author)
Hasegawa, S (author)
Hasegawa, T (author)
Heid, E (author)
Helbing, K (author)
Holvoet, H (author)
Van Hoorebeke, L (author)
Horikawa, N (author)
Iwata, T (author)
Jahn, O (author)
Jennewein, P (author)
Kageya, T (author)
Kiel, B (author)
Klein, F (author)
Kondratiev, R (author)
Kossert, K (author)
Krimmer, J (author)
Lang, M (author)
Lannoy, B (author)
Leukel, R (author)
Lisin, V (author)
Matsuda, T (author)
McGeorge, JC (author)
Meier, A (author)
Menze, D (author)
Meyer, W (author)
Michel, T (author)
Naumann, J (author)
Panzeri, A (author)
Pedroni, P (author)
Pinelli, T (author)
Preobrajenski, I (author)
Radtke, E (author)
Reichert, E (author)
Reicherz, G (author)
Rohlof, C (author)
Rosner, G (author)
Ryckbosch, D (author)
Sauer, M (author)
Schoch, B (author)
Schumacher, M (author)
Seitz, B (author)
Speckner, T (author)
Takabayashi, N (author)
Tamas, G (author)
Thomas, A (author)
Tiator, L (author)
van de Vyver, R (author)
Wakai, A (author)
Weihofen, W (author)
Wissmann, F (author)
Zapadtka, F (author)
Zeitler, G (author)
Lunds universitetMAX IV-laboratoriet (creator_code:org_t)

In:European Physical Journal A. Hadrons and Nuclei: Springer Science and Business Media LLC21:2, s. 323-3331434-6001
In:The European Physical Journal A: Springer Science and Business Media LLC21:2, s. 323-3331434-601X

By the author/editor: Ahrens, J; Altieri, S; Annand, JRM; Anton, G; Arends, HJ; Aulenbacher, K; show more...; Beck, R; Bradtke, C; Braghieri, A; Degrande, N; d'Hose, N; Drechsel, D; Dutz, H; Goertz, S; Grabmayr, P; Hansen, Kurt; Harmsen, J; von Harrach, D; Hasegawa, S; Hasegawa, T; Heid, E; Helbing, K; Holvoet, H; Van Hoorebeke, L; Horikawa, N; Iwata, T; Jahn, O; Jennewein, P; Kageya, T; Kiel, B; Klein, F; Kondratiev, R; Kossert, K; Krimmer, J; Lang, M; Lannoy, B; Leukel, R; Lisin, V; Matsuda, T; McGeorge, JC; Meier, A; Menze, D; Meyer, W; Michel, T; Naumann, J; Panzeri, A; Pedroni, P; Pinelli, T; Preobrajenski, I; Radtke, E; Reichert, E; Reicherz, G; Rohlof, C; Rosner, G; Ryckbosch, D; Sauer, M; Schoch, B; Schumacher, M; Seitz, B; Speckner, T; Takabayashi, N; Tamas, G; Thomas, A; Tiator, L; van de Vyver, R; Wakai, A; Weihofen, W; Wissmann, F; Zapadtka, F; Zeitler, G; show less...

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