论文标题
无色生产的阈值增强的横截面
Threshold enhanced cross sections for colorless productions
论文作者
论文摘要
我们研究了中性和带电的DREL-YAN生产的阈值效应，将Higgs玻色子与大量载体玻色子和Higgs的产生相关联，并在LHC的底部夸克and灭时产生了QCD的第三阶。在这些过程中，使用三阶软文字结果并利用阈值对数的普遍性，我们将这些过程的过程依赖于过程的系数提取，并恢复大阈值对数，到近代到next到next到领先的对数（n $^3 $ ll）精确度。通过将我们的结果与最近可用的N $^3 $ LO结果相匹配，我们为这些过程提供了最精确的理论预测。我们提出了不变质量分布和总生产横截面的数值结果。我们发现，在固定订单的结果下，在固定订单的n $^3 $ lo级别上的常规规模不确定性约为0.4 \％$ $^3 $^3 $^3 $ lo+n $^3 $ ll在高不变质量区域中的水平小于$ 0.1 \％$。
We study the threshold effect for neutral and charged Drell-Yan productions, associated production of Higgs boson with a massive vector boson and Higgs production in bottom quark annihilation at LHC to the third order in QCD. Using the third order soft-virtual results for these processes and exploiting the universality of the threshold logarithms, we extract the process-dependent coefficients for these processes and resum large threshold logarithms to next-to-next-to-next-to leading logarithmic (N$^3$LL) accuracy. By matching our results to the recently available N$^3$LO results, we provide the most precise theoretical predictions for these processes. We present numerical results for invariant mass distribution and total production cross-sections. We find the conventional scale uncertainties of about $0.4\%$ at N$^3$LO level in the fixed order results get reduced to as small as less than $0.1\%$ at N$^3$LO+N$^3$LL level in the high invariant mass region.
