论文标题
$ w^+w^ - $ $在LHC上的生产：NLO QCD校正到循环引起的Gluon Fusion频道
$W^+W^-$ production at the LHC: NLO QCD corrections to the loop-induced gluon fusion channel
论文作者
论文摘要
我们将NLO QCD校正计算为LHC的$ W^+W^ - $生产中的循环诱导的Gluon Fusion贡献。我们将完整的麻液过程$ pp \ to \ ell^+\ ell^{\ prime \， - }ν_ {\ ell} {\barν} _ {\ ell^\ prime}+x $，包括共振和非共振和无差异和旋转图，旋转校正和非上的图形和外形效果。计算首次包括了夸克 - 杜松党党通道，我们的结果与完全差异水平的夸克歼灭通道的NNLO预测相结合。正式的计算校正（\ cal o}（α_ {\ mathrm {s}}^3）$，将NNLO横截面仅增加约2％，但会影响运动兽医的一部分，以降低顶部的背景。我们的结果补充了NLO EW效果，提供了迄今为止可用于此过程的最先进的固定顺序预测，并将其与$ \ sqrt {s} = $ 13 TEV的差分图Atlas数据进行了比较。
We compute the NLO QCD corrections to the loop-induced gluon fusion contribution in $W^+W^-$ production at the LHC. We consider the full leptonic process $pp\to \ell^+\ell^{\prime\, -}ν_{\ell}{\barν}_{\ell^\prime}+X$, by including resonant and non-resonant diagrams, spin correlations and off-shell effects. Quark-gluon partonic channels are included for the first time in the calculation, and our results are combined with NNLO predictions to the quark annihilation channel at the fully differential level. The computed corrections, which are formally of ${\cal O}(α_{\mathrm{S}}^3)$, increase the NNLO cross section by only about 2%, but have an impact on the shapes of kinematical distributions, in part due to the jet veto, which is usually applied to reduce the top-quark background. Our results, supplemented with NLO EW effects, provide the most advanced fixed-order predictions available to date for this process, and are compared with differential ATLAS data at $\sqrt{s}=$ 13 TeV.
