论文标题
NLO校正对Higgs生产的QCD-ew的QCD-ew贡献
NLO Corrections to Light-Quark Mixed QCD-EW Contributions to Higgs Production
论文作者
论文摘要
我们首次提出了通过LHC13的Gluon融合对Higgs产生的混合QCD-EW贡献的确切NLO QCD校正，具有精确的EW-Boson质量依赖性。相关的双环实质矩阵元素是使用动态的一维系列扩展策略来计算的，该策略的稳定性和速度允许使用局部IR减法反反处理进行数值相位空间集成。对于$μ_r=μ_f= m_h $，我们发现：\ begin {qore}σ^{（α_s^2α^2+α_s^3α^2）} _ {g g g \ g \ rightARROW H+X} = 1.467（2）^{\;+18.7 \％} _ {\; - 14.6 \％} \;（μ_r\; \ \ \ text {var。}）\; \ pm 2 \％\;（\ pm 2 \％\;（\ pdf}）抑制贡献的估计值：\ begin {equination}σ^{（\ text {ew}，\ textrm {best}）} _ {p p \ p \ rightarrow h+x} = 2.11 \ pm 0.28 \（
We present for the first time the exact NLO QCD corrections to the light-quark part of the mixed QCD-EW contributions to Higgs production via gluon fusion at LHC13, with exact EW-boson mass dependence. The relevant two-loop real-emission matrix element is computed using a dynamic one-dimensional series expansion strategy whose stability and speed allows for a numerical phase-space integration using local IR subtraction counterterms. For $μ_R=μ_F=M_H$, we find: \begin{equation}σ^{(α_s^2α^2+α_s^3α^2)}_{g g\rightarrow H+X} = 1.467(2)^{\;+18.7\%}_{\;-14.6\%}\;(μ_R\;\text{var.})\;\pm 2\%\;(\text{PDF}) \ \textrm{pb},\end{equation} which we use to provide the best result including an estimate of suppressed contributions: \begin{equation}σ^{(\text{EW},\textrm{best})}_{p p\rightarrow H+X} = 2.11 \pm 0.28 \ (\textrm{theory}) \ \mathrm{pb}.\end{equation}
