Chiesa Mauro, Denner Ansgar, Lang Jean-Nicolas, Pellen Mathieu
1Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Emil-Hilb-Weg 22, 97074 Würzburg, Germany.
2Universität Zürich, Physik-Institut, 8057 Zürich, Switzerland.
Eur Phys J C Part Fields. 2019;79(9):788. doi: 10.1140/epjc/s10052-019-7290-6. Epub 2019 Sep 24.
In this article we present an event generator based on the Monte Carlo program Powheg in combination with the matrix-element generator Recola. We apply it to compute NLO electroweak corrections to same-sign W-boson scattering, which have been shown to be large at the LHC. The event generator allows for the generation of unweighted events including the effect of the NLO electroweak corrections matched to a QED parton shower and interfaced to a QCD parton shower. In view of the expected experimental precision of future measurements, the use of such a tool will be indispensable.
在本文中,我们展示了一个基于蒙特卡罗程序Powheg并结合矩阵元生成器Recola的事件生成器。我们将其应用于计算同号W玻色子散射的NLO电弱修正,该修正已证实在大型强子对撞机(LHC)上数值很大。该事件生成器能够生成未加权事件,包括与QED部分子喷注相匹配并与QCD部分子喷注相衔接的NLO电弱修正的效应。鉴于未来测量预期的实验精度,使用这样一种工具将是必不可少的。