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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Chiral symmetry and charmonium decays to two pseudoscalars

Author

  • Johan Bijnens
  • Ilaria Jemos

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

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