论文标题
Lepton对生产在QED中具有EW效果
Lepton pair production at NNLO in QED with EW effects
论文作者
论文摘要
考虑到近代到领先顺序的QED校正以及近代领先的级别electroweak和极化效应，我们提出了Lepton对生产的完全差异计算。我们包括所有的轻子质量，硬光子发射以及非扰动的耐药校正。相应的矩阵元素在Monte Carlo Framework McMule中实现。为了获得数值稳定的实现，我们将基于近代的功率扩展的通用技术扩展到近代的稳定，以使用偏振链球的计算。例如，我们显示了针对Belle II检测器定制的结果，并具有当前设置以及包括极化梁的潜在未来配置。
We present a fully differential calculation of lepton pair production, taking into account the dominant next-to-next-to-leading order QED corrections as well as next-to-leading order electroweak and polarisation effects. We include all lepton masses, hard photon emission, as well as non-perturbative hadronic corrections. The corresponding matrix elements are implemented in the Monte Carlo framework McMule. In order to obtain a numerically stable implementation, we extend next-to-soft stabilisation, a universal technique based on a next-to-leading-power expansion, to calculations with polarised leptons. As an example, we show results tailored to the Belle II detector with the current setup as well as a potential future configuration that includes polarised beams.
