论文标题
带有基准削减的DRELL-YAN横截面：线性功率校正的影响和$ Q_T $ - 在pdf确定中
Drell-Yan cross-sections with fiducial cuts: impact of linear power corrections and $q_T$-resummation in PDF determination
论文作者
论文摘要
中性和带电电流的DREL-YAN产生的强子围栏的测量值在确定Parton分布函数方面提供了必不可少的限制。在实验上，它们达到了百分比的精度，挑战了理论预测的准确性。在这项工作中，我们将新颖的实现在$ \ texttt {dyturbo} $中的$ q_t $ -subtraction形式上的线性基准功率校正的$ \ texttt {dyturbo} $中，nlo和qcd中的nnlo。我们说明了线性基准功率校正的包含如何影响对LHC的精确$ W $和$ Z $测量的预测，并通过现代全球Parton分配功能影响其描述。在理论预测中进一步纳入$ q_t $归因校正会导致对Lepton $ p_t $分布的更好建模，我们研究这如何改善数据的描述。
Measurement at Hadron colliders of neutral- and charged-current Drell-Yan production provide essential constraints in the determination of parton distribution functions. Experimentally, they have reached percent level precision, challenging the accuracy of the theoretical predictions. In this work we benchmark the novel implementation in $\texttt{DYTurbo}$ of linear fiducial power corrections in the $q_T$-subtraction formalism at NLO and NNLO in QCD. We illustrate how the inclusion of linear fiducial power corrections impacts predictions for precise $W$ and $Z$ measurements from the LHC and affects their description by modern global parton distribution functions. The further inclusion of $q_T$-resummation corrections in the theoretical predictions leads to a better modelling of the lepton $p_T$ distribution and we study how this improve the description of the data.
