2017/03/31 by Joe Davighi, Philip Harris
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Distribution (mathematics) #Fractal #Gluon #Hadron #High-Energy Particle Collisions Research #Jet (fluid) #Observable #Particle physics theoretical and experimental studies #Parton #Quark #Substructure #hep-ex #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-018-5819-8
published as Eur.Phys.J. C78 (2018) no.4, 334 · [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
openalex created_date 2017/03/16 · openalex publication_date 2018/04/01 · arxiv created 2018/05/09 · arxiv updated 2018/05/10 · openalex updated_date 2026/08/05
New jet observables are defined which characterize both fractal and scale-dependent contributions to the distribution of hadrons in a jet. These infrared safe observables, named Extended Fractal Observables (EFOs), have been applied to quark-gluon discrimination to demonstrate their potential utility. The EFOs are found to be individually discriminating and only weakly correlated to variables used in existing discriminators. Consequently, their inclusion improves discriminator performance, as here demonstrated with particle level simulation from the parton shower.