Matching the Electroweak Penquins Q_7 and Q_8
High Energy Physics - Phenomenology
2015-06-25 v1
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.
Cite
@article{arxiv.hep-ph/0209089,
title = {Matching the Electroweak Penquins Q_7 and Q_8},
author = {Elvira Gamiz and Joaquim Prades and Johan Bijnens},
journal= {arXiv preprint arXiv:hep-ph/0209089},
year = {2015}
}
Comments
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