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Partial-wave decomposition of pion and photoproduction amplitudes

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Abstract.

Partial-wave amplitudes for production and decay of baryon resonances are constructed in the framework of the operator expansion method. The approach is fully relativistically invariant and allows us to perform combined analyses of different reactions imposing directly analyticity and unitarity constraints. All formulas are given explicitly in the form used by the Crystal Barrel Collaboration in the (partly forthcoming) analyses of the electro-, photo- and pion-induced meson production data.

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Authors and Affiliations

  1. HISKP, Universität Bonn, D-53115, Bonn, Germany

    A. V. Anisovich, E. Klempt & A. V. Sarantsev

  2. Petersburg Nuclear Physics Institute, Gatchina, Russia

    A. V. Anisovich & A. V. Sarantsev

  3. II. Physikalisches Institut, Universität Giessen, Germany

    U. Thoma

Authors
  1. A. V. Anisovich
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  2. E. Klempt
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  3. A. V. Sarantsev
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  4. U. Thoma
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Corresponding author

Correspondence to E. Klempt.

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A. Schäfer

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Anisovich, A.V., Klempt, E., Sarantsev, A.V. et al. Partial-wave decomposition of pion and photoproduction amplitudes. Eur. Phys. J. A 24, 111–128 (2005). https://doi.org/10.1140/epja/i2004-10125-6

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  • DOI: https://doi.org/10.1140/epja/i2004-10125-6

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