Johan Bijnens
Professor, Deputy Head of Division
Leading logarithms in the anomalous sector of two-flavour QCD
Author
Summary, in English
We add the Wess-Zumino-Witten term to the N = 3 massive nonlinear sigma model and study the leading logarithms in the anomalous sector. We obtain the leading logarithms to six loops for pi(0) -> gamma*gamma* and to five loops for y*pi pi pi. In addition we extend the earlier work on the mass and decay constant to six loops and the vector form factor to five loops. We present numerical results for the anomalous processes and the vector form factor. In all cases the series are found to converge rapidly. (C) 2012 Elsevier B.V. All rights reserved.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2012
Language
English
Pages
245-266
Publication/Series
Nuclear Physics, Section B
Volume
860
Issue
2
Links
Document type
Journal article
Publisher
North-Holland
Topic
- Subatomic Physics
Keywords
- Renormalization group evolution of parameters
- Spontaneous and radiative
- symmetry breaking
- Chiral Lagrangians
- Anomalous processes
Status
Published
ISBN/ISSN/Other
- ISSN: 0550-3213