论文标题
panscales parton阵阵强子碰撞：配方和固定顺序研究
PanScales parton showers for hadron collisions: formulation and fixed-order studies
论文作者
论文摘要
我们为强子碰撞制定了Panscales Parton阵雨，以便在一系列可观察到的广泛可观察的情况下实现近代领导的对数（NLL）精度。我们专门为颜色单线制作而这样做。相对于现有的Panscales最终阵雨，主要的新问题是如何重新分配跨事件的初始状态分支的动量失衡。我们以固定顺序对淋浴进行了测试，包括用于软共线排放的全颜色和软域和界线结构域中的自旋相关性。我们还包括与标准偶极淋浴的配方进行比较，标准偶极淋浴是当前的领先型载体状态。即将推出的同伴论文将探索新淋浴的全阶测试。
We formulate PanScales parton showers for hadron collisions so as to achieve next-to-leading logarithmic (NLL) accuracy across a broad set of observables. We do so specifically for colour singlet production. Relative to the existing PanScales final-state showers, the main new question is that of how to redistribute momentum imbalances from initial-state branching across the remainder of the event. We presents tests of the showers at fixed order, including the treatment of full colour for soft-collinear emissions and of spin correlations in both the soft and collinear domains. We also include comparisons to a formulation of a standard dipole shower, the current leading-logarithmic state of the art. A forthcoming companion paper will explore all-order tests of the new showers.
