论文标题
对符号Quark的Electroweak校正$ε_k$
Electroweak Corrections to the Charm-Top-Quark Contribution to $ε_K$
论文作者
论文摘要
我们为对有效$ |ΔS| = 2 $ lagrangian，与参数$ε_k$相关。我们发现这些更正导致相应的威尔逊系数中的$ -0.5 \％$换档。此外，我们的计算消除了通过固定electroweak输入参数的重新归一化方案的标准模型预测中的隐含歧义。
We calculate the leading-logarithmic and next-to-leading-logarithmic electroweak corrections to the charm-top-quark contribution to the effective $|ΔS| = 2$ Lagrangian, relevant for the parameter $ε_K$. 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 $ε_K$, by fixing the renormalization scheme of the electroweak input parameters.
