论文标题
与TMD Parton分支合并的多喷工合并
Multi-jet Merging with TMD Parton Branching
论文作者
论文摘要
在高能量强大的强子山子山脉时具有较大射流多重性的最终状态研究中的主要理论系统学之一与QCD Parton阵雨和硬散射矩阵元素的合并有关。我们提出了一种通过使用横向动量依赖性（TMD）分布的概念和相关的Part顿分支，将由于初始状态淋浴的演变和多重子合并算法融合到多重生合并算法中，将横向动量后坐力的物理学结合在一起。我们通过使用LHC上的Vector Boson + JETS事件来研究差异速率，横向动量光谱和多样性分布来研究对合并量表的依赖，并通过研究差异喷射速率，横向动量光谱和多样性分布来说明新方法在独家和包含最终状态可观察物的水平上的影响。
One of the main theoretical systematics in studies of final states with large jet multiplicities at high-energy hadron colliders is associated with the merging of QCD parton showers and hard-scattering matrix elements. We present a method to incorporate the physics of transverse momentum recoils due to initial-state shower evolution into multi-jet merging algorithms by using the concept of transverse momentum dependent (TMD) distributions and the associated parton branching. We investigate the dependence on the merging scale and illustrate the impact of the new method at the level of both exclusive and inclusive final-state observables by studying differential jet rates, transverse momentum spectra and multiplicity distributions, using vector boson + jets events at the LHC as a case study.
