论文标题
Minnlo $ _ {\ rm PS} $：优化$ 2 \至1 $ HADRONIC过程
MiNNLO$_{\rm PS}$: Optimizing $2\to 1$ hadronic processes
论文作者
论文摘要
我们考虑Minnlo $ _ {\ rm ps} $方法，以始终如一地将近代到领先顺序（NNLO）QCD计算与parton-shower仿真相结合。我们确定Minnlo $ _ {\ rm ps} $与固定排顺序的NNLO预测之间的主要差异来源，该预测是由于超出NNLO准确性的校正，并提供了简单的处方，以减少或删除它们。提出了针对希格斯，充电和中性电流的Drell YAN产生的预测。对于包容性可观察到的，与固定阶NNLO计算的一致性大大改善了，并且尺度不确定性减少了。这些代码在Powheg-box中发布。
We consider the MiNNLO$_{\rm PS}$ method to consistently combine next-to-next-to-leading order (NNLO) QCD calculations with parton-shower simulations. We identify the main sources of differences between MiNNLO$_{\rm PS}$ and fixed-order NNLO predictions for inclusive observables due to corrections beyond NNLO accuracy and present simple prescriptions to either reduce or remove them. Refined predictions are presented for Higgs, charged- and neutral-current Drell Yan production. The agreement with fixed-order NNLO calculations is considerably improved for inclusive observables and scale uncertainties are reduced. The codes are released within the POWHEG-BOX.
