Matching the Electroweak Penquins Q_7 and Q_8

Abstract

We report on recent advances on the computation of the matrix elements of the electroweak penguins Q_7 and Q_8 which are relevant for the Delta I=3/2 contribution to epsilon'_K in the chiral limit. The matching of scale and scheme dependences between Wilson coefficients and these matrix elements is done analytically at NLO in alpha_S.

Invited talk given by J.P. at XIV Rencontres de Blois, "Matter Anti-Matter Asymmetry", 18-24 June 2002, and by E.G. at QCD 2002, Montpellier, 2-9 July 2002

Cited by in corpus (6)

• QCD Condensates for the Light Quark V-A Correlator
• Determination of the Chiral Couplings L_10 and C_87 from Semileptonic Tau Decays
• Violation of Quark-Hadron Duality and Spectral Chiral Moments in QCD
• Charged Kaon K \to 3 pi CP Violating Asymmetries at NLO in CHPT
• Hadronic Matrix Elements for Kaons
• From hadronic tau decays to the chiral couplings L_10 and C_87