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Article
KAON DECAYS AND A DETERMINATION OF THE SCALE OF CHIRAL SYMMETRY
PHYSICAL REVIEW D
  • JF Donoghue, University of Massachusetts Amherst
  • Eugene Golowich, University of Massachusetts - Amherst
  • BR Holstein, University of Massachusetts Amherst
Publication Date
1984
Abstract
Using effective chiral Lagrangians, we consider the occurrence of quadratic terms in the ΔI=1/2 K→3π matrix element. The inclusion of higher-derivative Lagrangians leads to a significant improvement over the usual current-algebra analysis. This allows an extraction directly from experimental data of Λχ, a measure of the scale of chiral symmetry. We give an operational definition of the chiral scale, and find Λχ≈1 GeV. The issue of uncertainty in the phenomenological determination of the B parameter is clarified.
Disciplines
Comments
Published version is located at http://prd.aps.org/abstract/PRD/v30/i3/p587_1
Pages
587-593
Citation Information
JF Donoghue, Eugene Golowich and BR Holstein. "KAON DECAYS AND A DETERMINATION OF THE SCALE OF CHIRAL SYMMETRY" PHYSICAL REVIEW D Vol. 30 Iss. 3 (1984)
Available at: http://works.bepress.com/barry_holstein/57/