论文标题
完成两环电动校正到$ e^+e^ - \ rightarrow Hz $
Complete two-loop electroweak corrections to $e^+e^-\rightarrow HZ$
论文作者
论文摘要
我们在未来的希格斯工厂计算了Higgsstralung流程的完整双环校正校正$ e^+e^ - \ rightarrow Hz $。涉及计算的Feynman积分被分解为最小的主积分集合的线性组合，利用了整体还原技术的最新发展。然后，通过辅助质量流量法提供的边界条件的微分方程对主积分进行评估。我们对给定$ \ sqrt {s} $的最终结果表示为由多个深层扩展的功率系列定义的分段函数，该功能具有很高的精度，并且可以有效地进行进一步操纵。我们的计算介绍了具有四个外部粒子的过程的第一个完整的两环电动校正。
We compute the complete two-loop electroweak corrections to the Higgsstralung process $e^+e^-\rightarrow HZ$ at the future Higgs factory. The Feynman integrals involved in the computation are decomposed into linear combinations of a minimal set of master integrals taking advantage of the recent developments of integral reduction techniques. The master integrals are then evaluated by differential equations with boundary conditions provided by the auxiliary mass flow method. Our final result for given $\sqrt{s}$ is expressed as a piecewise function defined by several deeply expanded power series, which has high precision and can be further manipulated efficiently. Our calculation presents the first complete two-loop electroweak corrections for processes with four external particles.
