Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region

J. Ahrens; S. Altieri; J. R.M. Annand; G. Anton; H. J. Arends; K. Aulenbacher; R. Beck; C. Bradtke; A. Braghieri; N. Degrande; 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. Keil; F. Klein; R. Kondratiev; K. Kossert; J. Krimmer; M. Lang; B. Lannoy; R. Leulel; V. Lisin; T. Matsuda; J. C. McGeorge; A. Meier; D. Menze; W. Meyer; T. Michel; J. Naumann; R. 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; T. Takabayashi; G. Tamas; A. Thomas; L. Tiator; R. Van De Vyver; A. Wakai; W. Weihofen; F. Wissmann; F. Zapadtka; G. Zeitler

doi:10.1140/epja/i2003-10216-x

Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region

J. Ahrens, S. Altieri, J. R.M. Annand, G. Anton, H. J. Arends, K. Aulenbacher, R. Beck, C. Bradtke, A. Braghieri, N. Degrande, N. D'Hose, D. Drechsel, H. Dutz, S. Goertz, P. Grabmayr, K. Hansen, J. Harmsen, D. Von Harrach, S. Hasegawa, T. HasegawaE. Heid, K. Helbing, H. Holvoet, L. Van Hoorebeke, N. Horikawa, T. Iwata, O. Jahn, P. Jennewein, T. Kageya, B. Keil, F. Klein, R. Kondratiev, K. Kossert, J. Krimmer, M. Lang, B. Lannoy, R. Leulel, V. Lisin, T. Matsuda, J. C. McGeorge, A. Meier, D. Menze, W. Meyer, T. Michel, J. Naumann, R. 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, T. Takabayashi, G. Tamas, A. Thomas, L. Tiator, R. Van De Vyver, A. Wakai, W. Weihofen, F. Wissmann, F. Zapadtka, G. Zeitler

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Abstract

A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both γp → Nπ channels in the Δ region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4π 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 Δ(1232)- resonance. For the resonant Δ(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations.

Original language	English
Pages (from-to)	323-333
Number of pages	11
Journal	European Physical Journal A
Volume	21
Issue number	2
DOIs	https://doi.org/10.1140/epja/i2003-10216-x
Publication status	Published - Aug 2004
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1140/epja/i2003-10216-x

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Ahrens, J., Altieri, S., Annand, J. R. M., Anton, G., Arends, H. J., Aulenbacher, K., Beck, R., Bradtke, C., Braghieri, A., Degrande, N., D'Hose, N., Drechsel, D., Dutz, H., Goertz, S., Grabmayr, P., Hansen, K., Harmsen, J., Von Harrach, D., Hasegawa, S., ... Zeitler, G. (2004). Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region. European Physical Journal A, 21(2), 323-333. https://doi.org/10.1140/epja/i2003-10216-x

Ahrens, J, Altieri, S, Annand, JRM, Anton, G, Arends, HJ, Aulenbacher, K, Beck, R, Bradtke, C, Braghieri, A, Degrande, N, 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, Keil, B, Klein, F, Kondratiev, R, Kossert, K, Krimmer, J, Lang, M, Lannoy, B, Leulel, R, Lisin, V, Matsuda, T, McGeorge, JC, Meier, A, Menze, D, Meyer, W, Michel, T, Naumann, J, Panzeri, R, 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, T, Tamas, G, Thomas, A, Tiator, L, Van De Vyver, R, Wakai, A, Weihofen, W, Wissmann, F, Zapadtka, F & Zeitler, G 2004, 'Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region', European Physical Journal A, vol. 21, no. 2, pp. 323-333. https://doi.org/10.1140/epja/i2003-10216-x

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title = "Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region",

abstract = "A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both γp → Nπ channels in the Δ region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4π 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 Δ(1232)- resonance. For the resonant Δ(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations.",

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. Degrande 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. Keil and F. Klein and R. Kondratiev and K. Kossert and J. Krimmer and M. Lang and B. Lannoy and R. Leulel 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 R. 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 T. Takabayashi and G. Tamas and A. Thomas and L. Tiator and {Van De Vyver}, R. and A. Wakai and W. Weihofen and F. Wissmann and F. Zapadtka and G. Zeitler",

year = "2004",

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doi = "10.1140/epja/i2003-10216-x",

language = "English",

volume = "21",

pages = "323--333",

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T1 - Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region

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 - Degrande, N.

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 - Keil, B.

AU - Klein, F.

AU - Kondratiev, R.

AU - Kossert, K.

AU - Krimmer, J.

AU - Lang, M.

AU - Lannoy, B.

AU - Leulel, 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, R.

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, T.

AU - Tamas, G.

AU - Thomas, A.

AU - Tiator, L.

AU - Van De Vyver, R.

AU - Wakai, A.

AU - Weihofen, W.

AU - Wissmann, F.

AU - Zapadtka, F.

AU - Zeitler, G.

PY - 2004/8

Y1 - 2004/8

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AB - A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both γp → Nπ channels in the Δ region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4π 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 Δ(1232)- resonance. For the resonant Δ(1232) multipoles we find a very good agreement with previous analyses, while the nonresonant ones show significant deviations.

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U2 - 10.1140/epja/i2003-10216-x

DO - 10.1140/epja/i2003-10216-x

M3 - Article

AN - SCOPUS:4644308376

SN - 1434-6001

VL - 21

SP - 323

EP - 333

JO - European Physical Journal A

JF - European Physical Journal A

IS - 2

ER -

Helicity dependence of the γp → Nπ channels and multipole analysis in the Δ region

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