Abstract
We calculate the leading-logarithmic and next-to-leading-logarithmic electroweak corrections to the charm-top-quark contribution to the effective |∆S| = 2 Lagrangian, relevant for the parameter ϵK. We find that these corrections lead to a −0.5% shift in the corresponding Wilson coefficient. Moreover, our calculation removes an implicit ambiguity in the standard-model prediction of ϵK, by fixing the renormalization scheme of the electroweak input parameters.
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Brod, J., Kvedaraitė, S., Polonsky, Z. et al. Electroweak corrections to the Charm-Top-Quark Contribution to ϵK. J. High Energ. Phys. 2022, 14 (2022). https://doi.org/10.1007/JHEP12(2022)014
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DOI: https://doi.org/10.1007/JHEP12(2022)014