Johan Bijnens
Professor, Deputy Head of Division
Scalar form factors in SU(3) chiral perturbation theory
Author
Summary, in English
The scalar form factors for the pions and kaons are calculated in SU(3) Chiral Perturbation Theory at order p(6), in the isospin limit m(u)=m(d)=(m) over cap. We find in general sizable corrections of O(p(6)). We use our results to obtain information on the 1/N-c suppressed low energy constants L-4(r) and L-6(r) as well as on two O(p(6)) low energy constants. We present some numerical results for masses and decay constants as well. We derive a relation for the scalar form factors analogous to Sirlin's relation for vector form factors.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2003
Language
English
Publication/Series
Journal of High Energy Physics
Volume
10
Issue
061
Document type
Journal article
Publisher
Springer
Topic
- Subatomic Physics
Keywords
- spontaneous symmetry breaking
- chiral lagrangians
Status
Published
ISBN/ISSN/Other
- ISSN: 1029-8479