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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

Masses and decay constants of pseudoscalar mesons to two loops in two-flavor partially quenched chiral perturbation theory

Author

  • Johan Bijnens
  • Timo Lähde

Summary, in English

This paper presents a first study of the masses and decay constants of the charged, or flavor-off-diagonal, pseudoscalar mesons to two loops for two flavors of sea-quarks, in Partially Quenched Chiral Perturbation Theory (PQ chi PT). Explicit analytical expressions up to O(p(6)) in the momentum expansion are given. The calculations have been performed within the supersymmetric formulation of PQ chi PT. A numerical analysis is done 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

72

Issue

7

Document type

Journal article

Publisher

American Physical Society

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1550-2368