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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Three-pseudoscalar photon interactions in chiral perturbation theory

Author

  • Johan Bijnens
  • Albert Bramon
  • Fernando Cornet

Summary, in English

We have calculated the next to leading corrections to the processes γπ- → π0π- and η → π+π-γ in chiral perturbation theory. The loop diagrams are divergent, requiring the contributions from the O(p6) lagrangian. The finite parts of the coefficients of the O(p6) terms are calculated assuming their saturation by the vector meson contribution. These corrections improve the agreement between the theoretical predictions and the experimental data.

Publishing year

1990-03-22

Language

English

Pages

488-494

Publication/Series

Physics Letters B

Volume

237

Issue

3-4

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693