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Kaon Photoproduction with Form Factors in a Gauge-invariant Approach

  • H. Haberzettl
  • C. Bennhold
  • T. Mart
  • T. Feuster
Part of the Few-Body Systems book series (FEWBODY, volume 10)

Abstract

The general gauge-invariant photoproduction formalism given by Haberzettl is applied to kaon photoproduction off the nucleon at the tree level, with form factors describing composite nucleons. We demonstrate that, in contrast to Ohta’s gauge-invariance prescription, this formalism allows electric current contributions to be multiplied by a form factor, i.e., they do not need to be treated like bare currents. Numerical results show that Haberzettl’s gauge procedure, when compared to Ohta’s, leads to much improved X 2 values. Moreover, predictions for the new Bonn SAPHIR data for p(γ, K +)Λ are given.

Keywords

Form Factor Differential Cross Section Gauge Invariance Hadronic Form Factor Pseudoscalar Coupling 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    H. Haberzettl: Phys. Rev. C56, 2041 (1997)ADSGoogle Scholar
  2. 2.
    H. Haberzettl et al.: Phys. Rev. C58, R40 (1998)ADSGoogle Scholar
  3. 3.
    K. Ohta: Phys. Rev. C40, 1335 (1989)ADSGoogle Scholar
  4. 4.
    T. Mart, C. Bennhold and C.E. Hyde-Wright: Phys. Rev. C51, R1074 (1995)ADSGoogle Scholar
  5. 5.
    M. Bockhorst et al.: Z. Phys. C63, 37 (1994)ADSGoogle Scholar

Copyright information

© Springer-Verlag/Wien 1999

Authors and Affiliations

  • H. Haberzettl
    • 1
  • C. Bennhold
    • 1
  • T. Mart
    • 1
    • 2
  • T. Feuster
    • 3
  1. 1.Center for Nuclear Studies, Physics DepartmentThe George Washington UniversityWashingtonUSA
  2. 2.Jurusan Fisika, FMIPAUniversitas IndonesiaDepokIndonesia
  3. 3.Institut für Theoretische PhysikUniversität GießenGießenGermany

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