论文标题
三环软功能，用于在强子山子上产生能量的电动玻色子
Three-loop soft function for energetic electroweak boson production at hadron colliders
论文作者
论文摘要
我们计算出在强大的横向撞机上的大型横向动量，计算出产生Electroweak Boson（Higgs，$γ$，$ w^\ pm $，$ z $）的三环软功能。这是第一次在近距离接头到领先的顺序（n $^3 $ lo）第一次计算三方过程的软功能。作为技术新颖性，我们根据前向散射型环图进行了计算，而不是评估相空间积分。我们的三循环结果包含着色型式贡献，并明确证实了对具有三个无质量parton腿的QCD散射幅度的通用红外结构的预测。软功能是在运动端点（阈值）附近的分解的横截面中的中心成分，其中与横向动量相比，后接回气管辐射的不变质量很小。我们的结果是要预测N $^3 $ lo的接近阈值横截面，并且要重新定位阈值对数，以底漆的近代到接头到领先的对数（n $^3 $ ll $^\^\ prime $）的精度。
We calculate the three-loop soft function for the production of an electroweak boson (Higgs, $γ$, $W^\pm$, $Z$) with large transverse momentum at a hadron collider. It is the first time a soft function for a three-parton process is computed at next-to-next-to-next-to-leading order (N$^3$LO). As a technical novelty, we perform the calculation in terms of forward-scattering-type loop diagrams rather than evaluating phase space integrals. Our three-loop result contains color-tripole contributions and explicitly confirms predictions on the universal infrared structure of QCD scattering amplitudes with three massless parton legs. The soft function is a central ingredient in the factorized cross section for electroweak boson production near the kinematic endpoint (threshold), where the invariant mass of the recoiling hadronic radiation is small compared to its transverse momentum. Our result is required for predictions of the near-threshold cross sections at N$^3$LO and for the resummation of threshold logarithms at primed next-to-next-to-next-to-leading logarithmic (N$^3$LL$^\prime$) accuracy.
