Johan Bijnens
Professor, Deputy Head of Division
Chiral symmetry and charmonium decays to two pseudoscalars
Author
Summary, in English
We apply hard pion Chiral Perturbation Theory to charmonium decays to pi pi, KK and eta eta. We first discuss why we expect to be able to provide results for the chiral logarithms in chi(c0) and chi(c2) decays to two pseudoscalars while for the decays from J/psi, psi(nS) and chi(c1) no simple prediction is possible. The leading chiral logarithm turns out to be absent for chi(c0), chi(c2) -> PP. This result is true for all fully chiral singlet states of spin zero and two.
Department/s
- Theoretical Particle Physics - Has been reorganised
Publishing year
2011
Language
English
Publication/Series
European Physical Journal A. Hadrons and Nuclei
Volume
47
Issue
11
Document type
Journal article
Publisher
Springer
Topic
- Subatomic Physics
Status
Published
ISBN/ISSN/Other
- ISSN: 1434-6001