Partial-wave decomposition of pion and photoproduction amplitudes

  • A. V. Anisovich
  • E. Klempt
  • A. V. Sarantsev
  • U. Thoma
Article

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.

PACS.

13.60.Le Meson production 14.20.Gk Baryon resonances with S = 0 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • A. V. Anisovich
    • 1
    • 2
  • E. Klempt
    • 1
  • A. V. Sarantsev
    • 1
    • 2
  • U. Thoma
    • 3
  1. 1.HISKPUniversität BonnBonnGermany
  2. 2.Petersburg Nuclear Physics InstituteGatchinaRussia
  3. 3.II. Physikalisches InstitutUniversität GiessenGermany

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