论文标题
高效计算希格斯玻色子对生产的双环振幅
Efficient computation of two-loop amplitudes for Higgs boson pair production
论文作者
论文摘要
我们提出了通过Gluon Fusion进入Higgs Boson对生产过程的两环振幅的精确计算。我们的方法基于小型质量扩展，同时保持对顶级夸克质量和其他运动不变的全部依赖。我们将结果与基于部门分解和高能量扩展的结合的最新预测进行了比较。我们发现我们的方法在整个相位空间中提供了精确的数字预测，而同时又高效，因为可以在普通台式机或笔记本电脑计算机上轻松执行计算。我们的方法对于希格斯玻色子对生产过程的实际现象学研究很有价值，也可以应用于其他类似的过程。
We present a precise and efficient computation of the two-loop amplitudes entering the Higgs boson pair production process via gluon fusion. Our approach is based on the small-Higgs-mass expansion while keeping the full dependence on the top quark mass and other kinematic invariants. We compare our results to the up-to-date predictions based on a combination of sector decomposition and high-energy expansion. We find that our method provides precision numeric predictions in the entire phase space, while at the same time is highly efficient as the computation can be easily performed on a normal desktop or laptop computer. Our method is valuable for practical phenomenological studies of the Higgs boson pair production process, and can also be applied to other similar processes.
