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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Decay Constants of Pseudoscalar Mesons to Two Loops in Three-Flavor Partially Quenched ChPT

Author

  • Johan Bijnens
  • Timo Lähde

Summary, in English

This paper presents a first study of the decay constants of the charged, or flavor-off-diagonal, pseudoscalar mesons to two loops for three flavors of sea quarks, in Partially Quenched Chiral Perturbation Theory (PQChPT). Explicit analytical expressions up to order p<sup>6</sup> in the momentum expansion are given. The calculations have been performed within the supersymmetric formulation of PQChPT. We also present some numerical results to indicate the size of the corrections.

Department/s

  • Theoretical Particle Physics

Publishing year

2005

Language

English

Publication/Series

Physical Review D (Particles, Fields, Gravitation and Cosmology)

Volume

71

Issue

9

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1550-2368