Novel approach to measure quark/gluon jets at the LHC

Andrzej Si\'odmok; Michael H. Seymour; Petr Baro\v{n}

Novel approach to measure quark/gluon jets at the LHC

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arxiv 2307.15378 v2 pith:T2CLOMVE submitted 2023-07-28 hep-ph hep-exhep-th

Petr Baroň , Michael H. Seymour , Andrzej Siódmok This is my paper · ORCID

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keywords gluonquarkdifferentenergiesmeasureobservablesadvantageangularity

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In this paper, we present a new proposal on how to measure quark/gluon jet properties at the LHC. The measurement strategy takes advantage of the fact that the LHC has collected data at different energies. Measurements at two or more energies can be combined to yield distributions of any jet property separated into quark and gluon jet samples on a statistical basis, without the need for an independent event-by-event tag. We illustrate our method with a variety of different angularity observables, and discuss how to narrow down the search for the most useful observables.

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Secondary Lund jet plane as a gluon enriched sample
hep-ph 2024-12 conditional novelty 6.0 of 10

Selecting close, asymmetric dijets at the LHC gives a ~90% gluon-enriched subleading jet sample, supported by fixed-order QCD and Monte Carlo.

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