探究夸克与胶子喷注子结构的基于分形的观测量
高能物理 - 唯象学
2018-05-10 v3 高能物理 - 实验
摘要
我们定义了新的喷注观测量，用以表征喷注中强子分布的分形贡献与标度依赖贡献。这些红外安全的观测量被称为扩展分形观测量，已被应用于夸克-胶子判别以展示其潜在效用。发现EFOs各自具有判别能力，且与现有判别器中使用的变量仅有弱相关性。因此，包含它们能提升判别器性能，正如本文通过部分子簇射的粒子级模拟所证明的那样。
引用
@article{arxiv.1703.00914,
title = {Fractal based observables to probe jet substructure of quarks and gluons},
author = {Joe Davighi and Philip Harris},
journal= {arXiv preprint arXiv:1703.00914},
year = {2018}
}
备注
[v1] 11 pages 4 figures [v2] 13 pages, 5 figures [v3] 9 pages, 7 figures. v2 added comment on how the observable can preserve infrared safety, updated acknowledgement, added diagram about visualization. v3 added comparison of performance in Herwig and Pythia, added comparison between two different EFO fitting functions, and added figure showing dependence on transverse momentum