论文标题
用能量相关器重新思考喷气机:轨道,重新调整和分析延续
Rethinking Jets with Energy Correlators: Tracks, Resummation and Analytic Continuation
论文作者
论文摘要
我们介绍了一组无限的JET子结构可观察物,这些可观察物是$ n $ - 点能量相关器的投影,它们在实验研究方面既方便又保持了以有限数量的光线运算符来源自其表示形式的显着分析性能。我们表明,可以使用跟踪或充电信息来计算这些可观察到的物品,并通过非扰动轨道或碎片函数的整数矩进行简单的重新加权。我们对预计的$ n $ - 点相关器的结果是$ n $的分析功能,从而使我们能够为所有$ n $的偶然结果得出重新召集的结果。我们通过分析地将结果继续归因于$ n $的非全能值,并定义了可观察到的相应的分析延续,我们将其称为$ν$ -Rorlelator,可以在LHC的Hadrons上测量。这使可观察的能够探测喷气机的领先扭线界线动力学,并将其放入一个分析家族中,我们希望这将导致对JET子结构的新见解。
We introduce an infinite set of jet substructure observables, derived as projections of $N$-point energy correlators, that are both convenient for experimental studies and maintain remarkable analytic properties derived from their representations in terms of a finite number of light ray operators. We show that these observables can be computed using tracking or charge information with a simple reweighting by integer moments of non-perturbative track or fragmentation functions. Our results for the projected $N$-point correlators are analytic functions of $N$, allowing us to derive resummed results to next-to-leading logarithmic accuracy for all $N$. We analytically continue our results to non-integer values of $N$ and define a corresponding analytic continuation of the observable, which we term a $ν$-correlator, that can be measured on jets of hadrons at the LHC. This enables observables that probe the leading twist collinear dynamics of jets to be placed into a single analytic family, which we hope will lead to new insights into jet substructure.