Author:
Brod Joachim,Kvedaraitė Sandra,Polonsky Zachary,Youssef Ahmed
Abstract
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.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference28 articles.
1. K. Anikeev et al., B physics at the Tevatron: Run II and beyond, hep-ph/0201071 [SLAC-REPRINT-2001-056] [FERMILAB-PUB-01-197] [INSPIRE].
2. Particle Data collaboration, Review of Particle Physics, Prog. Theor. Exp. Phys. 2022 (2022) 083C01 [INSPIRE].
3. J. Brod, M. Gorbahn and E. Stamou, Standard-Model Prediction of ϵK with Manifest Quark-Mixing Unitarity, Phys. Rev. Lett. 125 (2020) 171803 [arXiv:1911.06822] [INSPIRE].
4. A.J. Buras, D. Guadagnoli and G. Isidori, On ϵK Beyond Lowest Order in the Operator Product Expansion, Phys. Lett. B 688 (2010) 309 [arXiv:1002.3612] [INSPIRE].
5. RBC and UKQCD collaborations, Direct CP-violation and the ∆I = 1/2 rule in K → ππ decay from the standard model, Phys. Rev. D 102 (2020) 054509 [arXiv:2004.09440] [INSPIRE].
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