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Johan Bijnens in front of his whiteboard

Johan Bijnens

Professor, Deputy Head of Division

Johan Bijnens in front of his whiteboard

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 - Has been reorganised

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