论文标题
$tqγ$生产的QCD校正在强子山地
QCD corrections in $tqγ$ production at hadron colliders
论文作者
论文摘要
我们研究了在强子山子上相关的顶级夸克和光子（$TQγ$生产）的QCD校正。我们在LHC和未来的对撞机能量上计算了各种运动学切割的NLO横截面，并从规模依赖和Parton分布中估算了不确定性。我们还计算出夸克横向摩托和速度以及光子能量的差分分布。最后，我们研究了此过程的软绿色发射中的高阶校正，并为横截面和顶级差分分布提供了近似的NNLO（ANNLO）结果。我们还将计算与LHC的CMS和ATLAS的最新测量进行了比较，并发现Annlo校正改善了数据与标准模型预测之间的比较。
We study QCD corrections for the associated production of a single top quark and a photon ($tqγ$ production) at hadron colliders. We calculate the NLO cross section at LHC and future collider energies for a variety of kinematical cuts, and we estimate uncertainties from scale dependence and from parton distributions. We also calculate differential distributions in top-quark transverse-momentum and rapidity as well as photon energy. Finally, we study higher-order corrections from soft-gluon emission for this process, and we provide approximate NNLO (aNNLO) results for the cross section and top-quark differential distributions. We also compare our calculations with recent measurements from CMS and ATLAS at the LHC and find that the aNNLO corrections improve the comparison between the data and the Standard Model predictions.
