Precise predictions are provided for the production of a $Z$ boson and a $b$-jet in hadron-hadron collisions within the framework of perturbative QCD, at $\mathcal{O}({\alpha }_s^3)$. To obtain these predictions, we perform the first calculation of a hadronic scattering process involving the direct production of a flavored jet at next-to-next-to-leading-order accuracy in massless QCD and extend techniques to also account for the impact of finite heavy-quark mass effects. The predictions are compared to CMS data obtained in $pp$ collisions at a center-of-mass energy of 8 TeV, which are the most precise data from run I of the LHC for this process, where a good description of the data is achieved. To allow this comparison, we have performed an unfolding of the data, which overcomes the long-standing issue that the experimental and theoretical definitions of jet flavor are incompatible.

中文翻译：

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与Ab-Jet atO（αs3）关联的Z-玻色子产量的预测

提供了精确的预测，用于生产 $ž$ 玻色子和 $b$扰动QCD框架内的强子-强子碰撞中的射流 $\mathcal{Ø}（{\alpha }_s^3）$。为了获得这些预测，我们对强子散射过程进行了首次计算，该过程涉及在无质量QCD中以近至领先的精度直接生产调味射流，并扩展技术以考虑有限量的影响。重夸克质量效应。将预测结果与在$pp$在8 TeV的质心能量处发生碰撞，这是LHC的运行I为此过程提供的最精确的数据，可以很好地描述数据。为了进行比较，我们对数据进行了展开，从而克服了长期存在的喷射味的实验和理论定义不兼容的问题。