论文标题
非物质上的双环对$ t $ channel单顶制作的贡献
Non-factorisable two-loop contribution to $t$-channel single-top production
论文作者
论文摘要
我们报告了最新计算对$ t $ channel单上顶生产ARXIV的两环螺旋幅度的不可分割的贡献：2108.09222。这是此过程中两层虚拟校正的最后一部分。我们通过逐步进行分析积分以减少主体积分，并使用辅助质量流量方法进行快速数值评估。估计了非物质校正对单顶生产对实验测量可观察物的影响。
We report on a recent computation of the non-factorisable contribution to the two-loop helicity amplitude for $t$-channel single-top production arXiv:2108.09222. This is the last missing piece of the two-loop virtual corrections to this process. We perform analytic integration-by-parts reduction to master integrals and use the auxiliary mass flow method for their fast numerical evaluation. The impact of the non-factorisable corrections to single-top production on experimentally measured observables is estimated.
