Kℓ4 form-factors and π - π scattering

G. Amorós, J. Bijnens, P. Talavera

Research output: Contribution to journalArticlepeer-review


The F and G form-factors of Kℓ4 and the quark condensates are calculated to O(p6) in Chiral Perturbation theory (CHPT). Full formulas are presented as much as possible. A full refit of most of the O(p4) CHPT parameters is done with a discussion of all inputs and underlying assumptions. We discuss the consequences for the vacuum expectation values, decay constants, pseudoscalar masses and π - π scattering.

Original languageEnglish
Pages (from-to)293-352
Number of pages60
JournalNuclear Physics B
Issue number1-2
Publication statusPublished - 2000 Oct 2


  • 12.15.Ff
  • 12.39.Fe
  • 12.40.Yx
  • 14.40.-n
  • Chiral Perturbation theory
  • Chiral symmetry
  • Kaon decay


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