论文标题
$ tqz $生产的软绿色校正
Soft-gluon corrections for $tqZ$ production
论文作者
论文摘要
我们研究了Hadron Colliders的单个顶级夸克和$ Z $ BOSON（$ TQZ $生产）的软性纯色校正。我们发现辐射校正是由软绿色发射主导的。我们计算LHC能量处的近似NNLO（Annlo）横截面，包括量表依赖性和Parton分布的不确定性。我们还计算出Quark速度的差异分布。我们表明，Annlo更正很重要，它们增强了NLO横截面，同时减少了理论不确定性。
We study soft-gluon corrections for the associated production of a single top quark and a $Z$ boson ($tqZ$ production) at hadron colliders. We find that the radiative corrections are dominated by soft-gluon emission. We calculate the approximate NNLO (aNNLO) cross section at LHC energies, including uncertainties from scale dependence and from parton distributions. We also calculate differential distributions in top-quark rapidity. We show that the aNNLO corrections are significant and they enhance the NLO cross section while decreasing theoretical uncertainties.
