Matching the Electroweak Penquins Q7 and Q8
Elvira Gamiz, Joaquim Prades, Johan Bijnens
Abstract
We report on recent advances on the computation of the matrix elements of the electroweak penguins Q7 and Q8 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 alphaS.
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