https://doi.org/10.1140/epjc/s10052-018-5819-8
Regular Article - Theoretical Physics
Fractal based observables to probe jet substructure of quarks and gluons
1
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Wilberforce Road, Cambridge, UK
2
CERN, European Organization for Nuclear Research, Geneva, Switzerland
* e-mail: philip.coleman.harris@cern.ch
Received:
3
May
2017
Accepted:
17
April
2018
Published online:
25
April
2018
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.
© The Author(s), 2018