论文标题
与Powheg的NLO共鸣
Resonant leptoquark at NLO with POWHEG
论文作者
论文摘要
在计算质子内部的Lepton密度功能和模拟Lepton Shaters的最新进展奠定了基础，用于在强子山子中对共鸣leptoquark产生的精确研究。直接夸克·莱普顿（Quark-Lepton）融合到leptoquark中是LHC的一个新型生产通道，有可能探测大质量和耦合的独特参数空间。在这项工作中，我们构建了第一个蒙特卡洛事件生成器，用于在NLO上进行全面模拟此过程以进行生产，然后使用Powheg方法进行后续衰变，并与Parton阵雨相匹配，并利用Herwig。该代码可以通过可统一的夸克 - 莱普顿相互作用处理所有标量leptoquark模型。然后，我们全面研究差分分布，包括高阶效应，并评估相应的理论不确定性。我们还量化了改进预测对预测（HL-）LHC敏感性的影响，并启动FCC-HH潜能的首次探索。我们的工作铺平了使用此通道进行LHC搜索的方式。
Recent progress in calculating lepton density functions inside the proton and simulating lepton showers laid the foundations for precision studies of resonant leptoquark production at hadron colliders. Direct quark-lepton fusion into a leptoquark is a novel production channel at the LHC that has the potential to probe a unique parameter space for large masses and couplings. In this work, we build the first Monte Carlo event generator for a full-fledged simulation of this process at NLO for production, followed by a subsequent decay using the POWHEG method and matching to the parton showers utilizing HERWIG. The code can handle all scalar leptoquark models with renormalisable quark-lepton interactions. We then comprehensively study the differential distributions, including higher-order effects, and asses the corresponding theoretical uncertainties. We also quantify the impact of the improved predictions on the projected (HL-)LHC sensitivities and initiate the first exploration of the potential at the FCC-hh. Our work paves the way toward performing LHC searches using this channel.
