NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction
NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction
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DOI：
10.1007/jhep01(2013)080
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发表时间：
2012-10
影响因子：
5.4
通讯作者：
M. Czakon;A. Mitov
中科院分区：
文献类型：
--
作者：
M. Czakon;A. Mitov
我们计算了次-次-首阶QCD对反应中总的包含顶对产生截面的修正。我们发现中度（1%）的修正，在Tevatron和LHC的中心值。横截面的尺度变化在Tevatron中保持不变，在LHC中显着减少。我们发现，最近推出的近似的基础上的高能量限制的顶部对截面显着偏离的确切结果。在目前的工作中得出的结果包括在1.4版的程序顶++。计算反应的工作正在进行中。
We compute the next-to-next-to-leading order QCD correction to the total inclusive top pair production cross-section in the reaction. We find moderate(1%) correction to central values at both Tevatron and LHC. The scale variation of the cross-section remains unchanged at the Tevatron and is significantly reduced at the LHC. We find that recently introduced approximation based on the high-energy limit of the top pair cross-section significantly deviates from the exact result. The results derived in the present work are included in version 1.4 of the program Top++. Work towards computing the reactionis ongoing.