AI 中文总结
比较多轻子衰变通道中全离壳\(pp \to t\bar{t}W^+ +X\)过程标准固定阶NLO QCD预测与MiNLO方法结果，该方法通过逆\(k_T\)聚类算法动态确定尺度设置，在LHC Run II能量下比较两种方法，最后合并全离壳预测改进对基础过程的描述。
AI 中文摘要
我们将多轻子衰变通道中全离壳\(pp \to e^+\nu_e\, \mu^-\bar{\nu}_\mu\, \tau^+\nu_\tau\, b\bar{b} \, (j) + X\)过程的标准固定阶NLO QCD预测与使用MiNLO方法得到的结果进行比较。MiNLO方法通过逆\(k_T\)聚类算法识别额外喷注的最可能分支历史来动态确定重整化和因子化尺度设置。我们在\(\sqrt{s}=13\) TeV的LHC Run II能量下，对两种方法在积分和微分（基准）截面水平进行了专门比较。最后，我们给出了\(pp \to e^+\nu_e\, \mu^-\bar{\nu}_\mu\, \tau^+\nu_\tau\, b\bar{b} \, + X\)、\(pp \to e^+\nu_e\, \mu^-\bar{\nu}_\mu\, \tau^+\nu_\tau\, b\bar{b} \, j +X\)和\(pp \to e^+\nu_e\, \mu^-\bar{\nu}_\mu\, \tau^+\nu_\tau\, b\bar{b} \, jj\)全离壳预测的合并，旨在改进对基础\(pp \to e^+\nu_e\, \mu^-\bar{\nu}_\mu\, \tau^+\nu_\tau\, b\bar{b} + X\)过程的描述。
英文摘要
We compare standard fixed-order NLO QCD predictions for the full off-shell $pp \to e^+ν_e\, μ^-\barν_μ\, τ^+ν_τ\, b\bar{b} \, (j) + X$ processes in the multi-lepton decay channel with the results obtained using the MiNLO approach. The MiNLO method, now also implemented in the Helac-NLO framework, provides a dynamic determination of the renormalization and factorization scale settings by identifying the most likely branching histories of the additional jets through an inverse $k_T$-clustering algorithm. The inclusion of Sudakov form factors accounts for the large logarithms that arise in the presence of widely separated scales. We perform a dedicated comparison of the two approaches at both the integrated and differential (fiducial) cross-section levels for the LHC Run II energy of $\sqrt{s}=13$ TeV. Finally, we present the merging of the full off-shell predictions for $pp \to e^+ν_e\, μ^-\barν_μ\, τ^+ν_τ\, b\bar{b} \, + X$, $pp \to e^+ν_e\, μ^-\barν_μ\, τ^+ν_τ\, b\bar{b} \, j +X$ and $pp \to e^+ν_e\, μ^-\barν_μ\, τ^+ν_τ\, b\bar{b} \, jj$, with the aim of improving the description of the underlying $pp \to e^+ν_e\, μ^-\barν_μ\, τ^+ν_τ\, b\bar{b} + X$ process.
Comments31 pages, 12 figures, and 4 tables
