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On the Topic of Jets: Disentangling Quarks and Gluons at Colliders · Around

2018

On the Topic of Jets: Disentangling Quarks and Gluons at Colliders

Metodiev, Eric M., Thaler, Jesse

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We introduce jet topics: a framework to identify underlying classes of jets from collider data.

Because of a close mathematical relationship between distributions of observables in jets and emergent themes in sets of documents, we can apply recent techniques in "topic modeling" to extract jet topics from data with minimal or no input from simulation or theory.
As a proof of concept with parton shower samples, we apply jet topics to determine separate quark and gluon jet distributions for constituent multiplicity.
We also determine separate quark and gluon rapidity spectra from a mixed Z-plus-jet sample.

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