论文标题
LHC循环引起的$ ZZ $生产：通过矩阵匹配的改进描述
Loop-induced $ZZ$ production at the LHC: an improved description by matrix-element matching
论文作者
论文摘要
LHC处的大GLUON通量可以增强循环诱导的$ ZZ $生产，因此应在相关的实验分析中考虑到。我们首次基于循环诱导的$ ZZ + 0,1,2 $ -PARTON流程的主要独家模拟的结果首次提供了与Parton Showers相匹配的矩阵元素。通过将其与Parton Showers的Jets进行比较，研究并验证了新的描述。我们发现匹配的模拟提供了最终状态喷气机的最新描述。我们还简要讨论了物理对向量玻色子散射（VBS）测量的影响，与以前的仿真相比，在VBS $ ZZJJ $基线搜索区域中，事件产量在VBS $ ZZJJ $基线搜索区域中较小约40％。因此，我们主张相关的分析使用更准确的喷射说明来建模循环诱导的过程。
Loop-induced $ZZ$ production can be enhanced by the large gluon flux at the LHC, and thus should be taken into account in relevant experimental analyses. We present for the first time the results of a fully exclusive simulation based on the matrix elements for loop-induced $ZZ + 0,1,2$-parton processes at leading order, matched to parton showers. The new description is studied and validated by comparing it with well-established simulation with jets from parton showers. We find that the matched simulation provides a state-of-the-art description of the final state jets. We also briefly discuss the physics impact on vector boson scattering (VBS) measurements at the LHC, where event yields are found to be smaller by about 40% in a VBS $ZZjj$ baseline search region, compared to previous simulations. We hence advocate relevant analyses to employ a more accurate jet description for the modeling of the loop-induced process.
