We discuss the impact of the recent $\mathcal{O}({\alpha }_s^3)$ calculations of the semileptonic width of the b quark and of the relation between pole and kinetic heavy quark masses by Fael et al. on the inclusive determination of $|V_{cb}|$. The most notable effect is a reduction of the uncertainty. Our final result is $|V_{cb}|=42.16(51){10}^{-3}$.

中文翻译：

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三循环计算和包含Vcb

我们讨论最近的影响 $\mathcal{哦}({\alpha }_{秒}^3)$Fael 等人计算b夸克的半轻子宽度以及极点与动力学重夸克质量之间的关系。关于包容性的确定$|{伏}_{C乙}|$. 最显着的效果是降低了不确定性。我们的最终结果是$|{伏}_{C乙}|=42.16(51){10}^{-3}$.