论文标题
NNLO的双Higgs生产与日内瓦的Parton阵雨相连
Double Higgs production at NNLO interfaced to parton showers in GENEVA
论文作者
论文摘要
在这项工作中，我们使用\ textsc {geneva}框架并在重型限制近似中工作，以QCD的近代到领先顺序研究Higgs玻色子对的生产。这包括重新召集零jettiness $ \ mathcal {t} _0 $的大对数，直到近代到隔壁到领导者的准确性。该过程具有极大的动量转移，这使得其研究与\ textsc {geneva}中使用的方案尤其相关，其中使用了与Parton淋浴订购的可变不同的重新召集。为了进一步研究此效果，我们扩展了为\ textsc {pythia8}设计的原始淋浴界面，以包括其他parton淋浴，例如\ textsc {dire}和\ textsc {sherpa}。
In this work, we study the production of Higgs boson pairs at next-to-next-to-leading order in QCD matched to parton showers, using the \textsc{Geneva} framework and working in the heavy-top-limit approximation. This includes the resummation of large logarithms of the zero-jettiness $\mathcal{T}_0$ up to the next-to-next-to-next-to-leading-log accuracy. This process features an extremely large momentum transfer, which makes its study particularly relevant for matching schemes such as that employed in \textsc{Geneva}, where the resummation of a variable different from that used in the ordering of the parton shower is used. To further study this effect, we extend the original shower interface designed for \textsc{Pythia8} to include other parton showers, such as \textsc{Dire} and \textsc{Sherpa}.
