Johan Bijnens
Professor, Deputy Head of Division
QCD isospin breaking in meson masses, decay constants and quark mass ratios
Author
Summary, in English
The procedure to calculate masses and matrix-elements in the presence of mixing of the basis states is explained in detail. We then apply this procedure to the two-loop calculation in Chiral Perturbation Theory of pseudoscalar masses and decay constants including quark mass isospin breaking. These results are used to update our analysis of Kℓ4 done previously and obtain a value of mu/md in addition to values for the low-energy-constants Li
r.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2001-05-21
Language
English
Pages
87-108
Publication/Series
Nuclear Physics B
Volume
602
Issue
1-2
Document type
Journal article
Publisher
North-Holland
Topic
- Subatomic Physics
Keywords
- 11.30.Rd
- 12.15.Ff
- 12.39.Fe
- 13.20.Eb
Status
Published
ISBN/ISSN/Other
- ISSN: 0550-3213