论文标题
nnlo在NNLO的全彩生产天线减法
Antenna subtraction for jet production observables in full colour at NNLO
论文作者
论文摘要
我们描述了用天线减法在LHC处的全彩NNLO QCD校正计算的细节。该过程的所有相关矩阵元素$ pp \ to in nnlo的JJ $全彩色均已颜色调制并以$ n_c $和$ n_f $膨胀给出，从而确定了透明领先和转向的颜色贡献。先前已成功使用颜色定序的天线减法方法来构建最多五个部分或领先颜色近似的过程的NNLO减法项。但是，在具有六个或更多part量的过程中，平方矩阵元素的较高的颜色结构更挑战。在这里，我们描述了成功构建对天线减法形式中Dijet产生的颜色贡献的NNLO减法项所需的方法。
We describe the details of the calculation of the full colour NNLO QCD corrections to jet production observables at the LHC with antenna subtraction. All relevant matrix elements for the process $pp \to jj$ at NNLO in full colour are colour-decomposed and given in a $N_c$ and $n_f$ expansion, making identification of leading and subleading colour contributions transparent. The colour-ordered antenna subtraction method has previously successfully been used to construct the NNLO subtraction terms for processes with up to five partons or in the leading colour approximation. However, it is challenged by the more involved subleading colour structure of the squared matrix elements in processes with six or more partons. Here, we describe the methods needed to successfully construct the NNLO subtraction terms for the subleading colour contributions to dijet production within the antenna subtraction formalism.
