论文标题
重新召集的drell-yan横截面，n $^3 $ ll
Resummed Drell-Yan cross-section at N$^3$LL
论文作者
论文摘要
我们介绍了针对DRELL-YAN（DY）生产的包容性横截面以及Onshell $ z，w^\ pm $ PRODUCTIONS的重新定义，该预测是在近代到next to-Next到next到领先的对数（n $^{3} $ ll）精度的准确性。使用标准技术，我们在Mellin- $ n $空间以及$ n $独立的常数中得出了$ n $依赖的系数，并通过最小的处方匹配过程与现有的近代领先订单（NNLO）相匹配。除了标准的$ \ ln n $ dextonemation外，我们还研究了$ n $无关的部分软件和完整$ \ bar {g} _0 $的数值影响，这些部分出现在$ n $ space中。这些不同方法中所需的所有分析作品都是从已知近隔至接头订单（n $^3 $ lo）的包含横截面的软件部分中提取的。我们对量表和Parton分布函数（PDF）的变化进行了详细的分析，并对中性的Drell-Yan过程以及Onshell充电和中性载体玻色子生产的13 TEV LHC进行了预测。
We present the resummed predictions for inclusive cross-section for Drell-Yan (DY) production as well as onshell $Z,W^\pm$ productions at next-to-next-to-next-to leading logarithmic (N$^{3}$LL) accuracy. Using the standard techniques, we derive the $N$-dependent coefficients in the Mellin-$N$ space as well as the $N$-independent constants and match the resummed result through the minimal prescription matching procedure with that of existing next-to next-to leading order (NNLO). In addition to the standard $\ln N$ exponentiation, we study the numerical impacts of exponentiating $N$-independent part of the soft function and the complete $\bar{g}_0$ that appears in the resummed predictions in $N$ space. All the analytical pieces needed in these different approaches are extracted from the soft-virtual part of the inclusive cross section known to next-to-next-to-next-to leading order (N$^3$LO). We perform a detailed analysis on the scale and parton distribution function (PDF) variations and present predictions for the 13 TeV LHC for the neutral Drell-Yan process as well as onshell charged and neutral vector boson productions.
