论文标题
Higgs-Pair通过HADRON COLLIDERS通过Gluon Fusion生产:NLO QCD校正
Higgs-Pair Production via Gluon Fusion at Hadron Colliders: NLO QCD Corrections
论文作者
论文摘要
Higgs-Pair通过Gluon融合生产是HADRON COLLIDERS HIGGS-BOSON对的主要生产机制。在这项工作中,我们介绍了我们将完整的临近订单(NLO)QCD校正的数值确定到领先的顶级循环的详细信息。由于Gluon融合是在领先顺序下引起的环路诱导的过程,因此NLO计算需要计算涉及多达四个不同质量/能量尺度的大量两环图。使用当前方法,只有在不使用近似值的情况下,才能进行数值完成。我们讨论了数值集成的设置和细节。之后,将对NLO校正及其对总横截面和不变的Higgs-pair质量分布进行现象学分析。我们工作的最后一部分将致力于确定残留理论不确定性,特别强调源自(虚拟)顶级质量的计划和规模依赖性的不确定性。将讨论三连higgs耦合变化对总横截面的影响。
Higgs-pair production via gluon fusion is the dominant production mechanism of Higgs-boson pairs at hadron colliders. In this work, we present details of our numerical determination of the full next-to-leading-order (NLO) QCD corrections to the leading top-quark loops. Since gluon fusion is a loop-induced process at leading order, the NLO calculation requires the calculation of massive two-loop diagrams with up to four different mass/energy scales involved. With the current methods, this can only be done numerically, if no approximations are used. We discuss the setup and details of our numerical integration. This will be followed by a phenomenological analysis of the NLO corrections and their impact on the total cross section and the invariant Higgs-pair mass distribution. The last part of our work will be devoted to the determination of the residual theoretical uncertainties with special emphasis on the uncertainties originating from the scheme and scale dependence of the (virtual) top mass. The impact of the trilinear Higgs-coupling variation on the total cross section will be discussed.