Colouring the Higgs boson
Andy Buckley, Giuseppe Callea, Andrew J. Larkowski, Simone Marzani

TL;DR
This paper introduces the jet colour ring, a new observable for distinguishing Higgs boson decays into two jets from background, demonstrating promising discrimination power in simulation studies.
Contribution
The paper presents the jet colour ring, a novel colour tagger observable that improves separation of Higgs decay signals from background in jet analysis.
Findings
Jet colour ring shows notable discrimination power in simulations.
Outperforms other observables in separating colour-singlet decays.
Opens new avenues for further jet substructure studies.
Abstract
The jet colour ring is a novel colour tagger observable designed to separate the decay of a colour-singlet into two jets from a two-jet background in a different colour configuration. Simulation studies in the case of the production of a boosted Higgs boson decaying in two b-quarks and an associate electroweak boson, showed notable discriminator powers when comparing the jet colour ring performances with other observables. These results are opening a wide scenario for further studies.
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