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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

The B-K kaon parameter in the chiral limit

Author

  • Johan Bijnens
  • E Gamiz
  • J Prades

Summary, in English

We introduce four-point functions in the hadronic ladder resummation approach to large N-c QCD Green functions. We determine the relevant one to calculate the B-K kaon parameter in the chiral limit. This four-point function contains both the large momenta QCD OPE and the small momenta ChPT at NLO limits, analytically. We get (B) over cap (X)(K) = 0.38 +/- 0.15. We also give the ChPT result at NLO for the relevant four-point function to calculate B-K outside the chiral limit, while the leading QCD OPE is the same as the chiral limit one.

Department/s

  • Theoretical Particle Physics

Publishing year

2006

Language

English

Publication/Series

Journal of High Energy Physics

Issue

3

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • chiral lagrangians
  • 1/N expansion
  • CP violation
  • kaon physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479