论文标题
修饰喷气质量作为共线parton动力学的直接探测
Groomed jet mass as a direct probe of collinear parton dynamics
论文作者
论文摘要
我们研究了共线极限中的Parton动力学与装饰量质量分布的对数增强项之间的联系，用于用修饰的质量滴滴标记器（MMDT）修饰的喷气机。虽然领先的含量（LL）结果与领先分裂内核的共线演化有关，但在这里，我们直接从三连电分裂的内核中得出了NLL结构。我们提出的计算是在三连线限制中的固定阶计算，而与重新召集成分和方法无关。因此，它构成了先前使用cent形式主义得出的NLL结果的强大交叉检查，并提供了在传统QCD方法中重新召集所需的许多见解。
We study the link between parton dynamics in the collinear limit and the logarithmically enhanced terms of the groomed jet mass distribution, for jets groomed with the modified mass-drop tagger (mMDT). While the leading-logarithmic (LL) result is linked to collinear evolution with leading-order splitting kernels, here we derive the NLL structure directly from triple-collinear splitting kernels. The calculation we present is a fixed-order calculation in the triple-collinear limit, independent of resummation ingredients and methods. It therefore constitutes a powerful cross-check of the NLL results previously derived using the SCET formalism and provides much of the insight needed for resummation within the traditional QCD approach.
