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Photo of Johan Bijnens

Johan Bijnens

Professor

Photo of Johan Bijnens

Low energy constants from K(l4) form-factors

Author

  • G. Amorós
  • J. Bijnens
  • P. Talavera

Summary, in English

We have calculated the form-factors F and G in K → ππlν decays (K(l4)) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the L(i)/(r), the ChPT constants at O(p4), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates. (C) 2000 Elsevier Science B.V.

Department/s

  • Theoretical Particle Physics

Publishing year

2000-05-04

Language

English

Pages

71-76

Publication/Series

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

Volume

480

Issue

1-2

Document type

Journal article

Publisher

Elsevier

Topic

  • Subatomic Physics

Status

Published

ISBN/ISSN/Other

  • ISSN: 0370-2693