Analyzing N-point Energy Correlators Inside Jets with CMS Open Data

Abstract

Jets of hadrons produced at high-energy colliders provide experimental access to the dynamics of asymptotically free quarks and gluons and their confinement into hadrons. In this paper, we show that the high energies of the Large Hadron Collider (LHC), together with the exceptional resolution of its detectors, allow multipoint correlation functions of energy flow operators to be directly measured within jets for the first time. Using Open Data from the CMS experiment, we show that reformulating jet substructure in terms of these correlators provides new ways of probing the dynamics of QCD jets, which enables direct imaging of the confining transition to free hadrons as well as precision measurements of the scaling properties and interactions of quarks and gluons. This opens a new era in our understanding of jet substructure and illustrates the immense unexploited potential of high-quality LHC data sets for elucidating the dynamics of QCD.

arXiv commentIncludes music video of the confinement transition in real LHC data: https://www.youtube.com/watch?v=ZIFDcAXl73w. 5 pages, 4 figures + Supplemental Material. Code for Energy Correlators available at https://github.com/pkomiske/EnergyEnergyCorrelators v2. Updated references, modified color scheme and axis range for 2d plots, and updated video for ease of visualization. v3. Version to appear in PRL

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Cited by in corpus (29)

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