Photoproduction of baryons decaying into Nπ and Nη

  • A. V. Anisovich
  • A. Sarantsev
  • O. Bartholomy
  • E. Klempt
  • V. A. Nikonov
  • U. Thoma
Original Article

Abstract.

A combined analysis of photoproduction data on γp↦ πN, ηN was performed including the data on KΛ and KΣ. The data are interpreted in an isobar model with s-channel baryon resonances and π, ρ (ω), K, and K* exchange in the t-channel. Three baryon resonances have a substantial coupling to ηN, the well-known N(1535)S11, N(1720)P13, and N(2070)D15. The inclusion of data with open strangeness reveals evidence for further new resonances, N(1840)P11, N(1875)D13 and, with weaker evidence, for N(2170)D13.

PACS.

11.80.Et Partial-wave analysis 13.30.-a Decays of baryons 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
  • A. Sarantsev
    • 1
    • 2
  • O. Bartholomy
    • 1
  • E. Klempt
    • 1
  • V. A. Nikonov
    • 1
    • 2
  • U. Thoma
    • 1
    • 3
  1. 1.Helmholtz-Institut für Strahlen- und KernphysikUniversität BonnGermany
  2. 2.Nuclear Physics InstituteGatchinaRussia
  3. 3.Physikalisches InstitutUniversität GießenGermany

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