Johan Bijnens
Professor, Deputy Head of Division
Analytic representation of FK /Fπ in two loop chiral perturbation theory
Author
Summary, in English
We present an analytic representation of FK/Fπ as calculated in three-flavor two-loop chiral perturbation theory, which involves expressing three mass scale sunsets in terms of Kampé de Fériet series. We demonstrate how approximations may be made to obtain relatively compact analytic representations. An illustrative set of fits using lattice data is also presented, which shows good agreement with existing fits.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2018-05-01
Language
English
Publication/Series
Physical Review D
Volume
97
Issue
9
Document type
Journal article
Publisher
American Physical Society
Topic
- Subatomic Physics
Status
Published
ISBN/ISSN/Other
- ISSN: 2470-0010