论文标题
LHC在LHC上生产WW和WWJ生产的固定顺序和合并的Parton-shower预测，包括NLO QCD和EW校正
Fixed-order and merged parton-shower predictions for WW and WWj production at the LHC including NLO QCD and EW corrections
论文作者
论文摘要
首先，我们提出$ {\ rm p} {\ rm p} \toμ^+ν_μ{\ rm e}^ - \barν_{\ rm e} $和$ {\ rm p} {\ rm p} {\ rm p} \ to g to-t toμ^_^+ n-mMMM的组合分析ν_ {\ rm e} {\ rm j} $在近代领先顺序，包括QCD和Electroweak校正。其次，我们提供$ {\ rm p} {\ rm p} \toμ^+ν_μ{\ rm e}^ - \barν_{\ rm p}+ \ mathrm {jets} $，使用合并的parton-shoper模拟，还包括近似eW效应的全阶预测。将WW生产的完全包容性样本与用于独家零零和一重选项的固定顺序计算进行了比较。在横截面和差异分布的层面上详细研究了各种高阶效应，以实现实验设置。我们的研究证实，在两个过程之间的比率上，合并预测的稳定性明显得多。
First, we present a combined analysis of ${\rm p}{\rm p} \to μ^+ ν_μ{\rm e}^- \bar ν_{\rm e}$ and ${\rm p}{\rm p} \to μ^+ ν_μ{\rm e}^- \bar ν_{\rm e} {\rm j}$ at next-to-leading order, including both QCD and electroweak corrections. Second, we provide all-order predictions for ${\rm p}{\rm p} \to μ^+ ν_μ{\rm e}^- \bar ν_{\rm p}+\mathrm{jets}$ using merged parton-shower simulations that also include approximate EW effects. A fully inclusive sample for WW production is compared to the fixed-order computations for exclusive zero- and one-jet selections. The various higher-order effects are studied in detail at the level of cross sections and differential distributions for realistic experimental set-ups. Our study confirms that merged predictions are significantly more stable than the fixed-order ones in particular regarding ratios between the two processes.
