论文标题
纯夸克和Gluon可观察到共线滴
Pure Quark and Gluon Observables in Collinear Drop
论文作者
论文摘要
我们使用collinear drop修饰技术构建了一类纯夸克和Gluon可观察物。该结构是基于共线滴中射流质量的多个累积分布的线性组合，它们的特定权重完全扰动地预测。这产生可观察到的物品，这些可观察值纯粹是从较宽的相空间区域中的夸克（或纯粹来自胶子）获得的。我们通过证明这些可观察物在两个相空间区域有效，证明了这一点，一个是由扰动重新召集主导的，一个由非扰动效应主导。使用形状函数包括非扰动效应，这些函数仅是构建的线性组合中的常见因素。我们使用次临时进行对数重新召集和各种形状函数模型的数值分析测试了这一构建，并使用Pythia和Vincia分析了这些可观察到的物品。共线滴参数的选择已优化用于实验使用。
We construct a class of pure quark and gluon observables by using the collinear drop grooming technique. The construction is based on linear combinations of multiple cumulative distributions of the jet mass in collinear drop, whose specific weights are fully predicted perturbatively. This yields observables which obtain their values purely from quarks (or purely from gluons) in a wide region of phase space. We demonstrate this by showing that these observables are effective in two phase space regions, one dominated by perturbative resummation and one dominated by nonperturbative effects. The nonperturbative effects are included using shape functions which only appear as a common factor in the linear combinations constructed. We test this construction using a numerical analysis with next-to-leading logarithmic resummation and various shape function models, as well as analyzing these observables with Pythia and Vincia. Choices for the collinear drop parameters are optimized for experimental use.
