Title of article
Low energy constants from Kℓ4 form-factors
Author/Authors
G. Amoros، نويسنده , , J. Bijnens، نويسنده , , P. Talavera، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
6
From page
71
To page
76
Abstract
We have calculated the form-factors F and G in K→ππℓν decays (Kℓ4) to two-loop order in Chiral Perturbation Theory (ChPT). Combining this together with earlier two-loop calculations an updated set of values for the Lir, the ChPT constants at O(p4), is obtained. We discuss the uncertainties in the determination and the changes compared to previous estimates.
Journal title
PHYSICS LETTERS B
Serial Year
2000
Journal title
PHYSICS LETTERS B
Record number
912809
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