Journal
PHYSICAL REVIEW D
Volume 102, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.102.116003
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Funding
- MOST [2018YFA0403900]
- COST Action [CA16108]
- Italy-Serbia Ministero degli Affari Esteri (MAE) bilateral project [RS19MO06]
- CNRS/IN2P3
- France-China Particle Physics Laboratory (FCPPL)
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Loop-induced ZZ production can be enhanced by the large gluon flux at the LHC, and thus should be taken into account in relevant experimental analyses. We present for the first time the results of a fully exclusive simulation based on the matrix elements for loop-induced ZZ + 0, 1, 2-parton processes at leading order, matched to parton showers. The new description is studied and validated by comparing it with well-established simulation with jets from parton showers. We find that the matched simulation provides a state-of-the-art description of the fmal-state jets. We also briefly discuss the physics impact on vector boson scattering measurements at the LHC, where event yields are found to be smaller by about 40% in a vector boson scattering ZZjj baseline search region, compared to previous simulations. We hence advocate relevant analyses to employ a more accurate jet description for the modeling of the loop-induced process.
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