First measurement of the helicity-dependent γ→p→ → pη differential cross-section

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

doi:10.1140/epja/i2002-10153-2

First measurement of the helicity-dependent γ^→p^→ → pη differential cross-section

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

研究成果 › 査読

26 被引用数 (Scopus)

抄録

The helicity dependence of the γ^→p^→ pη reaction has been measured for the first time at a center-of-mass angle θ*_η = 70° in the photon energy range from 780 MeV to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4π-detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. The helicity 3/2 cross-section is found to be small and the results for helicity 1/2 agree with predictions from the MAID analysis.

本文言語	English
ページ（範囲）	241-244
ページ数	4
ジャーナル	European Physical Journal A
巻	17
号	2
DOI	https://doi.org/10.1140/epja/i2002-10153-2
出版ステータス	Published - 6月 2003
外部発表	はい

ASJC Scopus subject areas

核物理学および高エネルギー物理学

文献へのアクセス

10.1140/epja/i2002-10153-2

他のファイルとリンク

引用スタイル

Ahrens, J., Altieri, S., Annand, J. R. M., Anton, G., Arends, H. J., Aulenbacher, K., Beck, R., Bradtke, C., Braghieri, A., D'Hose, N., Drechsel, D., Dutz, H., Goertz, S., Grabmayr, P., Hansen, K., Harmsen, J., Von Harrach, D., Hasegawa, S., Hasegawa, T., ... Zeitler, G. (2003). First measurement of the helicity-dependent γ^→p^→ → pη differential cross-section. European Physical Journal A, 17(2), 241-244. https://doi.org/10.1140/epja/i2002-10153-2

Ahrens, J, Altieri, S, Annand, JRM, Anton, G, Arends, HJ, Aulenbacher, K, Beck, R, Bradtke, C, Braghieri, A, D'Hose, N, Drechsel, D, Dutz, H, Goertz, S, Grabmayr, P, Hansen, K, 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, Van de Vyver, R, Wakai, A, Weihofen, W, Wissmann, F, Zapadtka, F & Zeitler, G 2003, 'First measurement of the helicity-dependent γ^→p^→ → pη differential cross-section', European Physical Journal A, vol. 17, no. 2, pp. 241-244. https://doi.org/10.1140/epja/i2002-10153-2

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title = "First measurement of the helicity-dependent γ→p→ → pη differential cross-section",

abstract = "The helicity dependence of the γ→p→ pη reaction has been measured for the first time at a center-of-mass angle θ*η = 70° in the photon energy range from 780 MeV to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4π-detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. The helicity 3/2 cross-section is found to be small and the results for helicity 1/2 agree with predictions from the MAID analysis.",

author = "J. Ahrens and S. Altieri and Annand, {J. R.M.} and G. Anton and Arends, {H. J.} and K. Aulenbacher and R. Beck and C. Bradtke and A. Braghieri and N. D'Hose and D. Drechsel and H. Dutz and S. Goertz and P. Grabmayr and K. Hansen and J. Harmsen and {Von Harrach}, D. and S. Hasegawa and T. Hasegawa and E. Heid and K. Helbing and H. Holvoet and {Van Hoorebeke}, L. and N. Horikawa and T. Iwata and O. Jahn and P. Jennewein and T. Kageya and B. Kiel and F. Klein and R. Kondratiev and K. Kossert and J. Krimmer and M. Lang and B. Lannoy and R. Leukel and V. Lisin and T. Matsuda and McGeorge, {J. C.} and A. Meier and D. Menze and W. Meyer and T. Michel and J. Naumann and A. Panzeri and P. Pedroni and T. Pinelli and I. Preobrajenski and E. Radtke and E. Reichert and G. Reicherz and Ch Rohlof and G. Rosner and D. Ryckbosch and M. Sauer and B. Schoch and M. Schumacher and B. Seitz and T. Speckner and N. Takabayashi and G. Tamas and A. Thomas and {Van de Vyver}, R. and A. Wakai and W. Weihofen and F. Wissmann and F. Zapadtka and G. Zeitler",

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T1 - First measurement of the helicity-dependent γ→p→ → pη differential cross-section

AU - Ahrens, J.

AU - Altieri, S.

AU - Annand, J. R.M.

AU - Anton, G.

AU - Arends, H. J.

AU - Aulenbacher, K.

AU - Beck, R.

AU - Bradtke, C.

AU - Braghieri, A.

AU - D'Hose, N.

AU - Drechsel, D.

AU - Dutz, H.

AU - Goertz, S.

AU - Grabmayr, P.

AU - Hansen, K.

AU - Harmsen, J.

AU - Von Harrach, D.

AU - Hasegawa, S.

AU - Hasegawa, T.

AU - Heid, E.

AU - Helbing, K.

AU - Holvoet, H.

AU - Van Hoorebeke, L.

AU - Horikawa, N.

AU - Iwata, T.

AU - Jahn, O.

AU - Jennewein, P.

AU - Kageya, T.

AU - Kiel, B.

AU - Klein, F.

AU - Kondratiev, R.

AU - Kossert, K.

AU - Krimmer, J.

AU - Lang, M.

AU - Lannoy, B.

AU - Leukel, R.

AU - Lisin, V.

AU - Matsuda, T.

AU - McGeorge, J. C.

AU - Meier, A.

AU - Menze, D.

AU - Meyer, W.

AU - Michel, T.

AU - Naumann, J.

AU - Panzeri, A.

AU - Pedroni, P.

AU - Pinelli, T.

AU - Preobrajenski, I.

AU - Radtke, E.

AU - Reichert, E.

AU - Reicherz, G.

AU - Rohlof, Ch

AU - Rosner, G.

AU - Ryckbosch, D.

AU - Sauer, M.

AU - Schoch, B.

AU - Schumacher, M.

AU - Seitz, B.

AU - Speckner, T.

AU - Takabayashi, N.

AU - Tamas, G.

AU - Thomas, A.

AU - Van de Vyver, R.

AU - Wakai, A.

AU - Weihofen, W.

AU - Wissmann, F.

AU - Zapadtka, F.

AU - Zeitler, G.

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AB - The helicity dependence of the γ→p→ pη reaction has been measured for the first time at a center-of-mass angle θ*η = 70° in the photon energy range from 780 MeV to 790 MeV. The experiment, performed at the Mainz microtron MAMI, used a 4π-detector system, a circularly polarized, tagged photon beam, and a longitudinally polarized frozen-spin target. The helicity 3/2 cross-section is found to be small and the results for helicity 1/2 agree with predictions from the MAID analysis.

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EP - 244

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