论文标题
n $^3 $ lo+n $^3 $ ll QCD改进的希格斯对横截面
N$^3$LO+N$^3$LL QCD improved Higgs pair cross sections
论文作者
论文摘要
我们报告了Higgs Boson对生产的软性高luon阈值重新召集的新计算 - Gluon-Gluon Fusion-直到近代到接头到临时，到达领先的对数（n $^3 $ ll）的精度。 After matching N$^3$LL to the next-to-next-to-next-to-leading order (N$^3$LO) QCD calculation in the infinite top quark mass approximation, we show that the central values of the inclusive cross sections are quite stable with respect to N$^3$LO, while the conventional renormalisation and factorisation scale uncertainties are reduced by a factor of two, reaching to the subpercent level.我们的研究进一步巩固了良好的渐近扰动收敛。在与完整的顶级质量质量质量相关的近代到领先顺序QCD结果结合后，我们最先进的预测是针对HIGGS对的包含总横截面和差分不变质量分布提出的。
We report a new calculation of the soft-gluon threshold resummation for the Higgs boson pair production in the dominant production mode -- gluon-gluon fusion -- up to the next-to-next-to-next-to-leading logarithmic (N$^3$LL) accuracy. After matching N$^3$LL to the next-to-next-to-next-to-leading order (N$^3$LO) QCD calculation in the infinite top quark mass approximation, we show that the central values of the inclusive cross sections are quite stable with respect to N$^3$LO, while the conventional renormalisation and factorisation scale uncertainties are reduced by a factor of two, reaching to the subpercent level. Our study further consolidates the good asymptotic perturbative convergence. After combining with the full top-quark mass dependent next-to-leading order QCD results, our most advanced predictions are presented for both the inclusive total cross sections and the differential invariant mass distributions of the Higgs pair.
