Angular Scaling in Jets
High Energy Physics - Phenomenology
2015-06-03 v2 High Energy Physics - Experiment
Abstract
We introduce a jet shape observable defined for an ensemble of jets in terms of two-particle angular correlations and a resolution parameter R. This quantity is infrared and collinear safe and can be interpreted as a scaling exponent for the angular distribution of mass inside the jet. For small R it is close to the value 2 as a consequence of the approximately scale invariant QCD dynamics. For large R it is sensitive to non-perturbative effects. We describe the use of this correlation function for tests of QCD, for studying underlying event and pile-up effects, and for tuning Monte Carlo event generators.
Cite
@article{arxiv.1201.2688,
title = {Angular Scaling in Jets},
author = {Martin Jankowiak and Andrew J. Larkoski},
journal= {arXiv preprint arXiv:1201.2688},
year = {2015}
}
Comments
Updated to JHEP version