论文标题
对$ t $ channel单顶制作的不可分支的贡献
Non-factorisable contribution to $t$-channel single-top production
论文作者
论文摘要
我们在LHC上计算非物质可折叠的$ {\ cal o}（α_s^2）$校正到$ t $ -CHANNEL单顶夸克的生产。这些特殊的校正是由于重型和轻夸克之间的相互作用而出现的，并在扰动QCD中首次出现在近代到领先的顺序上。我们发现，在此过程中，不可分化的校正将单顶生产横截面和相关的运动学分布改变了大约半数。
We compute the non-factorisable ${\cal O}(α_s^2)$ corrections to $t$-channel single-top quark production at the LHC. These peculiar corrections arise because of interactions between the heavy- and the light-quark lines and appear for the very first time at next-to-next-to-leading order in perturbative QCD. We find that the non-factorisable corrections change the single-top production cross section and the relevant kinematic distributions in this process by about half a percent.
